Chevrolet Concept Car

The Chevrolet WTCC Ultra has got what it takes to be a star. Not just because its rear spoiler shoots so brashly up towards the heavens. The bold and aggressive design of the sports car study takes the Chevrolet body language to the extreme. "We wanted to explore the concept of a Chevrolet muscle car reinvented for Europe," says David Lyon, Executive Director GM Asia-Pacific Design.
The Chevrolet WTCC Ultra concept car is equipped with a powerful 1,991 cm3 diesel unit generating 139 kW/190 hp. The basic version of the four-cylinder engine is the common rail unit with four-valve technology and variable turbine blade geometry currently powering the Chevrolet Captiva and due to go into the Epica from spring 2007.For Ewan Kingsbury, the Lead Designer of the WTCC Ultra, "aggressive", "muscular" and "dramatic" are the words that first spring to mind when he is asked to describe the design of the new project. "As the chosen theme of the car was a concept racecar, this immediately gave me license to push the passion and aggression of the styling to the extreme".

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Dodge ASC Viper Diamondback Concept

The American company ASC (American Specialty Cars) showed its creative expertise by unveiling a supercar made even more super by the addition of a mostly carbon-fiber body.

A "snake" with an all-new skin, the ASC Viper Diamondback is super-light and super-fast. It’s fitting that ASC, which helped the Chrysler Group bring the new Dodge Viper SRT10 coupe to life, would, with the aid of McLaren Performance Technologies, show how the Viper coupe might be taken to an all-new level of “extreme.” The 615 bhp Viper Diamondback features a carbon fiber roof, deck lid, rockers, fascia inserts, body trim and a massive OmniCarbon hood that shows off ten unique trumpeted air intakes, with individual port throttles, peeking through - a McLaren Performance Technologies feature reminiscent of McLaren Can-Am engines of the past.

The hood also shows off compression-molded carbon fiber. It’s displayed beautifully, with a broad, clearcoated racing stripe down the Artic White-painted expanse, subtly outlined by “Viper Blue” and “McLaren Red” pinstripes. In all, ASC removed about 85 lbs. of weight from the vehicle - including cutting the weight of the hood by nearly half versus the production model. Taken together with the powertrain modifications by McLaren Performance Technologies, the power-to-weight ratio was increased, resulting in an estimated increase in 0-60 mph time of 3.5 seconds.

Novitec Evolves the Ferrari F430

The performance of the established Novitec Bi Compressor engine has been improved to 656 bhp with the new Evoluzione version with modified turbine-blades and separated oil-circuit, modified and a completely heat insulated enlarged induction tract, a new underbody air tract and modified ECU. The additional power of 20 bhp drastically increase the driving performance of the 636 bhp version.


In close collaboration of both technology departments, Brembo developed the new Novitec brake system with 380mm discs and 6-pistons at the front and rear axle. The outstanding deceleration values offer complete security in all situations.

The driving stability, also at high speed in the curves, is improved by the Novitec suspension and stronger anti sway bars. The complete set of wheels, NF2 Race in black with a car-color matching stripe and Pirelli Pzero Rosso tires provide a strong grip.

In the wind tunnel of the Research Institute for Motor Vehicles in Stuttgart, the aerodynamic functionality of the Novitec body components were checked. Thanks to these tests, not only the design of the F430 is underlined, but also the negative lift force is increased. The interior is individualized with exclusive materials and design.

The Engine

  • Novitec Bi – compressor with two Rotrex – compressors with separated oil-circuit, modified and enlarged induction tract complete heat-insulated, watercooled intercoolers with additional watercoolers, pumps, reinforced v-ripped belts, injectors, air tract duct in underbody as well as modified ECU’s.
  • Power-optimized exhaust system in stainless steel with 90mm outlets, modified gear ratio.

The Brakes

  • Brembo brake system with 380mm metal discs front and rear and 6-pistons brake callipers at the front and rear axle.

The Suspension

  • KW stainless steel coil over suspension Sport (dual adjustment), complete wheel set NF2 Race, front axle 9.0 x 19 inches with 255/30 R19 Pirelli P-Zero Rosso, rear axle 12.5 x 20 inches with 345/25 R20 Pirelli P-Zero Rosso.

Aerodynamic

  • Front bumper Supersport, rear diffuser, rear wing Supersport, skirts for side panels.

The Interior

  • Complete interior leather appointment kit Supersport in two colours Alcantara with Supersport Performance seats, steering wheel Supersport, aluminum pedal set with driver and passenger foot rest.

Ford GeigerCars Mustang GT 520

How much excitement and sporty character can the current Ford Mustang really offer? The answer to this question delivers 520 bhp, reaches a top speed of 178 mph, and in addition to racing-inspired body styling painted a hot GeigerCars.de orange offers an exclusive interior with 10,000-watt sound system. The show car Mustang GT 520 from GeigerCars.de, Europe's leading tuner of American automobiles, demonstrates the true potential of the reborn sports car legend.


More power through more displacement and supercharge the whole thing to boot is the recipe behind GeigerCars.de's performance tuning of the Mustang GT V8 engine. Displacement was increased from 4.6 to 5.2 liters, and the engine was extensively reworked. Precision-machining of both cylinder heads, installing sport camshafts and reinforcing the valvetrain are part of the GeigerCars.de power treatment as is a belt-driven supercharger with generously dimensioned intercooler. A fully stainless-steel high-performance sport exhaust system with high-performance manifold and metal catalysts round out the engine conversion.

Another GeigerCars.de innovation is the sporty aerodynamic-enhancement kit that is designed to fit both body styles of the current Mustang, convertible and coupe.

The new front fascia was designed to be easily exchanged for the production bumper, thanks to its precise fit and the retention of the original mounting points. The large oval air dam ensures ample supply of cooling air for all radiators and coolers. The lateral openings were shaped to optimize the air flow for best possible brake cooling. The integrated front spoiler reduces lift on the front axle.

The GeigerCars.de rear fascia with integrated diffuser is also designed as a replacement part. Together with a large adjustable wing it produces notably more downforce on the rear axle than the production car.

The GeigerCars.de rocker panels round out the sport package for the latest Mustang models.

The spectacular appearance is further enhanced by multi-piece GeigerCars.de chrome wheels. The Mustang wheel houses offer enough space to fit five-spoke wheels in size 9Jx20 in front with size 255/35 ZR20 tires. The rear axle features size 10Jx20 wheels with tires in size 285/30 ZR20.

Specially matched to this extreme tire/wheel combination is the height-adjustable GeigerCars.de coil-over suspension. Firmer damper settings and a ride-height lowering of up to 2 inches lend the two-door even more agile handling. GeigerCars.de sport sway bars minimize body roll in fast corners and make turn-in more precise.

The interior of the show car is hardly recognizable as belonging to a Ford Mustang: The exclusive fully leather black interior features highly contoured sport seats for improved lateral support, and, most of all, a multimedia sound system from JBL that was custom-tailored acoustically and visually to the interior of the Ford Mustang coupe.

The sound system is controlled by an Alpine IVA-W200Ri head unit connected to a digital PXA-H701 sound processor from the same manufacturer. It allows the driver of the GT 520 to shape the sound according to his or her personal preferences. Thanks to the easy-to-use iPod adapter "Drive&Play" from harman/kardon the driver can enjoy the music stored on his iPod in addition to listening to radio, CD's and DVD's.

There's no such thing as too much power and thus the Mustang from GeigerCars.de offers not just copious amounts of same under the hood but also in the interior. A total of four JBL amps, types Px300.4, Px600.2 and A6000GTI, drive the speakers with no less than 10,000 watts of power. A bigger alternator and five Optima Yellow Top batteries ensure the stereo system's electrical health even at full volume.

The best was also barely good enough when it came to the integration of the loudspeakers: None other than installation specialist Renato Rivic from X-Dream-CarAudio implanted the distinguished products for JBL in the Ford Mustang. His futuristic shapes and choice of luxury materials add quite a bit more style to the interior. The vehicle now features a perfectly integrated real 5.1 surround system with top-shelf hardware from JBL. The speakers are located on the dashboard, in the doors, the space formerly occupied by the two rear emergency seats, and in the trunk: Two W15GTI subwoofers as well as three C508GTI, two GTO804 and one C608 GTI loudspeaker systems guarantee exceptional listening pleasure.

The GeigerCars.de GT 520 will spend the next 12 months as a show car at many exhibitions around the globe. Individual components of this vehicle are available for all current Mustang models.

Porsche 9ff Cayman CR42

There is no doubt: All our understanding begins with experience. What else should awaken our intellect if not objects appealing to our senses, producing, on the one hand, ideas all by themselves, while, on the other hand, inviting our intellectual capacity to compare, associate or to divide them in order to transform the raw material of our sensory impressions into the sort of understanding called experience?


Titles, records and everyday work are experiences which have brought 9ff to an understanding that gave birth to the idea of creating this homage to our senses. The clear, no-nonsense, but nevertheless powerful design of the CR42 is a clear mirror reflecting the philosophy of the small-series manufacturer from Germany.

Elegant, aerodynamically efficient and with a sharpened precision, the two-seater convinces in every respect by its love for detail. First to mention are the excitingly designed and very light disc wheels equipped with a patented central locking system and the precisely adjustable chassis comprising any imaginable component and, last but not least, the attached parts partially manufactured from carbon. Cleverly combined, but also reasonable in detail.

But, the 9ff CR42’s highlight is hidden deep inside the mid-engined sports car: A 4.1-liter flat-6 engine generously offering its 420 bhp as well as its powerful 321 lb-ft of torque. This is the basis for thrilling driving performances and a superior power development vaporizing any benchmark in its segment. The 9ff Cayman masters the sprint of prestige to 62 mph in 4.4 seconds, and about 10 seconds later, the CR42 already passes the 124 mph mark. Even the smaller engine version – with a displacement of 3.8 liters – outshone all its competitors with its performance during a comparative test at AMS. The understanding gained there may by now be experienced through the 9ff CR42.

BMW 335i Coupe by Hamann

BMW’s trump card in the two-door sedan segment is the 3 Series coupe. This elegantly proportioned model lends itself perfectly to accentuating its sporty appeal by adding new details. Hamann from Laupheim also shares this opinion and adorns the 3 Series coupe an aerodynamics kit, power boosts, new wheel rims and a stylish interior. Hamann can boost the power in this coupe by means of optimized curve maps. In other words, the electronic power boost is achieved by recalibrating the standard ECU.

The six-cylinder petrol engines 325i and 330i receive a boost of 13 bhp and 17 bhp and in both cases around 20 lb-ft of torque. The top speed goes up to 155 and 160 mph respectively. In the 330i, the price includes the deactivation of the 155 mph speed restriction.

Also when it comes to the diesel models, customers can expect a substantial power boost. In the 330d, 272 bhp, 160 mph top speed and 443 lb-ft at 2000 rpm are made possible.

A power boost to around 380 bhp for the 335i is currently in preparation.

By fitting a Hamann 4-pipe sports rear muffler with four round tailpipes, the 335i and 335d can make their power public. The 4 stainless steel tailpipes, each 76 mm in diameter, make the rear end of this coupe look even more attractive.

Various Power Boost

Still so young, and already its first facelift.... Hamann does not do things by half and sets to work on the face. The new, sportier-looking Hamann front spoiler is designed to be fitted onto the standard bumper. The visual lowering effect is created by the new side sills, which lend the side view more character. The vehicle’s back can either be customized with a Hamann rear spoiler or a spoiler lip. A truly effective means of reducing the lift. The same effect is produced by the Hamann roof spoiler, which sits on top of the vehicle. The rear center molding, which incorporates matching cutouts for the tailpipes, is designed to be used in conjunction with the Hamann 4-pipe sports rear muffler. Fitting Carbon-Kevlar mirror caps lends the Hamann 3 Series coupe a further eye-catching touch.

Wheels from 18 to 20 Inch

Hamann really goes to town when it comes to the wheels. No fewer than four different designs and three sizes from 18 to 20 inch make choosing difficult. The HM2 design, available in an 18 inch version, is a single-piece light alloy wheel with five spokes in the ‘Silver’ finish and features an outer rim with an INOX steel lip. The single-piece rim Anniversary I has a multi-spoke design and is also available in the ‘Silver’ finish and features an outer rim with an INOX steel lip. Hamann offers it as an 18, 19 and 20 inch version. The PG3 wheel is a composite five-spoke wheel in silver with a high-gloss polished rim flange. Here, customers can choose between the sizes 19 and 20 inch.

Needless to say, 20 inch wheels suit the customized 3 Series coupe best. In this size, Hamann offers its “Edition Race” design as its top model. The appearance of this three-piece, ultra-lightweight, forged rim in a cross-spoke design and with a black spider is characterized by the 9 main spokes, each of which branches outwards into 2 further spokes. In addition to the exciting design, the titanium bolts are a particularly eye-catching detail. The high-gloss rim flange adds the finishing touch to the stylish looks.

By fitting a suspension lowering kit, comprising four progressive suspension struts, Hamann succeeds in lowering the vehicle’s center of gravity by 1.5 inch at the front and by 0.8 inch at the rear. Even in vehicles that come with sporty suspension tuning, that’s still around 0.6 inch.

The Interior

Numerous accessories combine to make sitting inside the Hamann 3 Series coupe all the more pleasurable. Thanks to the three-spoke Hamann airbag sports steering wheel, the driver always has the reins securely in his hands. A sporty flair is added by the decorative carbon-fiber components, which Hamann fits on the dashboard, center console, ashtray trim, doors, steering wheel, gearshift knob, handbrake lever and the I-Drive-Controller. Hamann adds further sporty nuances in the form of sport gearshift knobs (in aluminum or leather/aluminum), aluminum pedals, an aluminum handbrake lever and an aluminum footrest. An exclusive set of floor mats sporting the Hamann logo in silver rounds off the interior offering.

Needless to say, Hamann will customize every 3 Series to a customer’s own specific requirements. By way of illustration, luxurious leather upholsteries in various colors are possible, as are extensive multimedia conversions featuring a DVD player, TV reception and a PlayStation.

Nissan Terminator 350Z by Craig Lieberman

Terminator 350Z is the latest in a long line of tuner project cars built for clients of Craig Lieberman's company. Built for Louis Ringe, a retiree from Temecula, California, this 350Z has now made the covers of HCI and SPC magazine, but its' greatest role is its' starring appearance in 2 MagnaFlow commercials.

One is already airing on Spike TV and Speed Channel, the other commercial features Mario Andretti, Ivan Stewart and Craig Lieberman, as the stunt driver in both the 350Z and the Corvette you'll see in one of these commercials.

The car features custom built 19" HRE Wheels, Falken Tires and a VeilSide Version 3 body kit. For audio/video, the Terminator theme was integrated into the car which now features an assortment of Bazooka products. Other electronics include racing compass and switchgear by Ignited. The final touch was a 100 shot of nitrous, courtesy of Nitrous Express.

Porsche 911 Turbo Mission 400 Plus by Jurgen Alzen Motorsport

Mission 400 Plus - under this project name H&R presents an especially spectacular world premiere at the Essen Motor Show 2006. Jurgen Alzen Motorsport, long-time partner of H&R in the long-distance championship on the Nurburgring, engine tuner RS Tuning and H&R have jointly developed a sports car based on the Porsche 997. It is destined to win the Blue Ribbon for the world's fastest street-legal sports car next year, with a top speed of more than 250 mph (400 km/h).


The idea to tackle the world record was born in August 2006 at the Six-Hour Race on the Nurburgring. After the H&R-sponsored Alzen Motorsport Porsche 911 GT3 fell victim to an accident in only the second lap, team boss Jurgen Alzen and H&R marketing director Hardy von der Brake had time to discuss means to better demonstrate the technology transfer from motorsports to the development of sporty suspension components.

The idea quickly turned into the Mission 400 Plus concept, whose prototype now celebrated its world debut at the Essen Motor Show 2006. The three companies that have joined forces to turn this concept into reality have proven their potential in building super-fast sports cars numerous times before.

The experienced team of technicians from Jurgen Alzen Motorsport in Betzdorf is responsible for the technical design and for building the car. The engine is based on that of the latest 997-series Porsche 911 Turbo, and comes from RS Tuning. H&R contributes its immense know-how in the field of suspension design and setup.

Favorable aerodynamic properties are essential for a car that is designed to break the 400-km/h barrier. Minimizing frontal surface area is absolutely elementary, which is why Jurgen Alzen decided to lower the roof by 3 inches. At the same time the A-pillars were tilted back further by 5.5 degrees. To give the coupe a homogenous overall appearance the tilt of B- and C-pillars was adjusted accordingly. Special flush-mounted polycarbonate windows all around complete the roof conversion.

Also part of the Mission 400 Plus aerodynamics concept are numerous other modifications that were developed and tested in the wind tunnel. Among them are a long rear with pronounced separation edge and the absence of rain channels. Streamlined cowlings for the 18-inch BBS light-alloy wheels will reduce air turbulence on the vehicle's sides during the record run.

The Mission 400 Plus engine is built by RS Tuning in Kirchhaslach, where the racing engines for Jurgen Alzen Motorsport have been created for many years. The displacement of the six-cylinder flat engine is increased from 3.6 to 3.8 liters and the engine is reworked entirely. Company owner Reinhold Schmirler's power cocktail also includes special combustion chamber shapes as well as precision-machined cylinder heads with larger valves, and high-performance camshafts.

The engine's peripherals are also completely new. In addition to an intake manifold with larger and smoothened ports the engine is equipped with a more powerful turbocharging system and a high-performance exhaust.

The stock turbos with variable turbine geometry are replaced by larger conventional ones, which are supplied with optimal amounts of exhaust gas by the custom-tailored stainless-steel exhaust manifolds. Higher capacity intercoolers provide cooler charge air for maximum power output, aided on the exhaust side by a stainless-steel sport exhaust with metal catalysts.
RS Tuning's stationary test bench is used to fine-tune the perfect interaction of all individual components with special 100-octane fuel mapping for the Bosch-developed engine electronics.

With a boost pressure of 1.5 bar the engine develops 1,054 bhp / 775.7 kW at 7,700 rpm and a peak torque of 760 lb-ft at 5,800 rpm. And yet, the speed-record hunter meets stringent EURO IV emission limits.

Power is transferred to the rear wheels via a high-performance clutch and a modified high-geared six-speed transmission.

The high-speed track in Nardo, where the world record is supposed to be set next year, places extreme demands on the Mission 400 Plus suspension, due to its undulated surface. H&R has custom-developed a special version of its H&R HIGH-END suspension specifically for this purpose.

The top-of-the-line product in the H&R lineup distinctly sets itself apart from conventional sport suspensions. In addition to special struts with sporty springs and shocks the H&R HIGH-END suspension further consists of bearings made from especially high-quality harder materials, custom-made aluminum lower A-arms as well as special tie rods and newly designed upper rear axle links.

Installing this almost infinitely adjustable suspension results in even more strength and more direct response. It also allows an even more precise setup of the record car to account for the banked track at Nardo. The Mission 400 Plus is further equipped with adjustable H&R sport sway bars on front and rear axle.

The overall lightweight design is completed with Carbon-made doors and hoods and a Spartan interior with Recaro carbon-fiber racing seats and a roll cage.

Mission 400 Plus will hunt for the record in Nardo in the first half of 2007. Creator and race driver Jurgen Alzen will pilot the ultra-low-profile coupe.

Ford Shelby GT-H

In a throwback to the famed Shelby GT350H "Rent-A-Racer" program from the 1960s, Ford Motor Company, Shelby Automobiles and The Hertz Corporation are partnering to produce a special run of performance-modified Ford Mustang GTs – designated Ford Shelby GT-H, for "Hertz" – that will be available for rent later this spring exclusively through Hertz. Approximately 500 units will be available through the Hertz Fun Collection at select airport locations Arizona, California, Colorado, Florida, Hawaii, Massachusetts, Nevada, Oregon and Washington.


Forty years ago, Carroll Shelby and The Hertz Corporation came up with an ingenious plan to help get a batch of high-performance, special-edition Shelby Mustangs into the hands of rental customers who also happened to be car enthusiasts. Ford supplied the new Mustangs with V-8 engines and mostly automatic transmissions, Shelby added extra performance and style, and Hertz gave the public access to the kind of unique driving experience that one would normally only find on a racetrack. Today, the story of the Shelby/Hertz "Rent-A-Racer" is legendary and surviving Shelby GT350H Mustangs are among the most sought-after collector cars in the world.

To connect the magical past of the original Shelby GT350H with the modern capabilities of the new Ford Mustang, Shelby, Ford and Hertz have again teamed up, and – together with the Ford Racing Performance Group – have given the 2006 Ford Shelby GT-H a very classic, muscular look as well as some true performance credentials.

The Ford Shelby GT-H Mustang will be available at select airport locations that feature the Hertz Fun Collection including Phoenix, Arizona; Los Angeles, Orange County, San Diego and San Francisco, California; Denver, Colorado; Fort Lauderdale, Miami, Orlando, Tampa and West Palm Beach, Florida; Maui and Honolulu, Hawaii, and Las Vegas, Nevada. In addition, the car will be available in Boston, Massachusetts; Portland, Oregon, and Seattle, Washington.

The Shelby GT-H's Extra "Show"

Like its predecessor, the 2006 Shelby GT-H will be instantly recognizable – thanks to several eye-catching styling enhancements that are so much a part of the Shelby Mustang heritage. First and foremost, each Shelby GT-H will wear Black exterior paint set off with Gold racing stripes, a hallmark of Hertz’s vehicle history dating all the way back to the 1920s.

To give a hint of the Mustang GT 4.6-liter 3V V-8 engine’s added capability, the Ford Shelby GT-H is fitted with a custom Shelby Performance hood with pins, and a brushed aluminum grille with running horse emblem. A unique front fascia with integrated lower grille, as well as a set of body side scoops – reminiscent of classic Shelby Mustangs is incorporated for a distinct look. To further catch the enthusiast’s eye, the Mustang GT brakes are dressed up with painted calipers, which can be seen through the GT-H’s 17-inch aluminum wheels wearing 235/55 ZR17 performance rubber.

Ford Racing Performance Group is supplying its popular Power Pack (FR1) to add a genuine 25-horsepower Ford performance kick to the 300-horse Mustang GT 4.6L V-8/Five-speed automatic transmission powertrain and an increase of 10 lb-ft of torque. The package includes Ford Racing’s 90mm Cold Air kit, the Muffler Kit, a new X-pipe similar to the one used on the new Ford Shelby GT500 Mustang, a performance calibration and a cat-back performance exhaust for that throaty sound that will make this car unmistakably a Shelby Mustang GT-H.

To put that extra horsepower to the ground, the Ford Shelby GT-H also comes with the Ford Racing Handling Pack (FR3) installed, including special-tuned dampers inspired from the FR500C, lowering springs, sway bars and a strut tower brace – plus a Ford Racing 3.55:1 ratio rear axle assembly for extra off-the-line acceleration.

"This GT-H project has been terrific," said Amy Boylan, president, Shelby Automobiles Inc. "My team here at Shelby Automobiles is very excited with what we have put together with Ford, and Hertz – a pony that not only has a special look, but can really run, too. Those who get to rent a GT-H in the coming months will have the opportunity to enjoy a car that looks, accelerates, handles and sounds the way a high-performance Shelby-ized Ford Mustang should. It will prove lots of fun for Hertz customers looking for some real driving excitement."

Mercedes-Benz Renntech SLR 722 Edition

At the 1955 Mille Miglia, at 7:22am, British racing drivers Stirling Moss and Denis Jenkinson set out on what was to be a historic run. Moss' Mercedes-Benz 300SLR, though visually similar to the road-going 300SL gull wing car, was based heavily on Mercedes' W196 Grand Prix car. Despite this, the Italian teams were the heavy favorites to win, with a strong showing expected from the Porsche 550 team. The SLR, wearing the number 722 (indicating the 7:22 start time) won the race, and turned Stirling Moss into a legend.

Some 50 years later, very little seemed to have changed. Mercedes McLaren's 626 bhp SLR had barely seen the light of day before Ferrari's Enzo stole the headlines. To make matters worse, Porsche's flyweight Carrera GT arrived with the Bugatti Veyron hot on its heels. All of a sudden, the SLR was washed out in a wave of new supercar headlines.

Mercedes decided the best response to this dilemma would be to invoke the spirit of Moss and the original Mille Miglia number 722, and released, in the summer of 2007, a special edition Mercedes-McLaren SLR 722 with 650 bhp.

For most people, six-fifty is probably enough says RENNtech's Hartmut Feyhl, but you see that 722 on the car and you start to want seven-hundred and twenty-two horsepower.

Such comments might be easily dismissed but not when they come from Feyhl. No stranger to high-performance, Feyhl followed up his 12 year run at AMG by forming RENNtech a tuning house generally regarded as the America's foremost authority on Mercedes-Benz performance.

The RENNtech crew began with a comprehensive review of the SLR's stock components, when attention quickly focused on the car's intercooler. The stock intercooler wasn't doing the job, Feyhl explains, it needed an upgrade.

That upgrade took the form of a virtual redesign of the SLR's intercoolers. The stock intercooler pump was replaced with a RENNtech-specific pump with almost double the capacity of outgoing unit. A dedicated radiator was installed, and the new pieces were integrated into the engine bay almost invisibly. As Feyhl points out, It looks like it s supposed to be there. The new intercooler dropped intake temperatures an average of 10 degrees Celsius across the operating range, and the time it took to get the engine's temperatures back to normal after a dyno run was greatly reduced. We used to have to wait almost 2 minutes between dyno runs to the get the temperatures back down, even with big fans blowing, says Feyhl. Now it takes about 20 seconds.

The improved cooling meant that RENNtech could shift their attention to the supercharger and pulley a RENNtech pulley kit, enhanced by RENNtech's own SLR specific software tuning, increased boost to the SLR's 5.5 liter V8 and produced an astonishing (albeit, coincidental) result: 722 bhp which might mean a lot more to McLaren customers than 7:22am.

Volkswagen R GTI Concept

Thirty years ago Volkswagen launched the GTI, the “hot hatch” that would revolutionize the concept of affordable and accessible high-performance motoring. Now comes the R GTI, a look forward into the future of compact car performance, making its debut at the 2006 SEMA Show in Las Vegas.

Few cars have enjoyed such an enduring run of success, and to honor the GTI’s rich past, Volkswagen has cast an eye on the GTI of tomorrow with the R GTI, a low-flying stealth machine developed by Volkswagen Chief Designer Derek Jenkins and his talented crew at the Volkswagen Design Center California, located in Santa Monica. With its striking carbon-fiber body panels, four-passenger sports car interior, powerful turbocharged engine and competition-bred suspension, the R GTI is a stimulating fusion of style and dynamic excellence, fully modern in content and achievement yet staying true to such longstanding Volkswagen values as drivability, durability and utility.

In collaboration with the firm OSIR Design, hand-laid carbon fiber component experts, Jenkins replaced the stock GTI’s front fenders, hood, side rockers, and hatch door with carbon-fiber panels developed by both OSIR and Jenkins’ in-house team. In addition to providing a weight advantage, the carbon fiber’s black weave creates a dazzling visual complement to the lustrous black paint scheme, which itself was adorned with hexagonal “stealth” graphics that echo the grille of the original GTI.

Additional carbon-fiber components are the lower front spoiler, front grille surround, rear rooftop spoiler and Jenkins-restyled rearview mirror housings, all in carbon fiber. Other distinctive exterior design touches include blacked-out front headlamp housings, R32 tail lamps with smoked lenses, R32-type central twin exhaust pipes with motorcycle-theme tips, a la Jenkins’ GX3 three-wheeler concept from 2005.

Reference to the GTI’s trademark hexagonal grille pattern is also seen in the R GTI’s specially constructed 19x9-inch aluminum alloy wheels, with lightness as a crucial contributor to reduced unsprung weight, and improved ride quality and cornering. Tucked within fenders designed for additional clearance, the beefier running gear includes Michelin Pilot Sport Cup ultra-high-performance radials, sized 265/30 R19. In track tests, the larger tire footprint proved to be a valuable ally in transferring the engine’s prodigious 340 ft-lb of torque to the ground. Despite being rolled straight out of the design studio on to the track, the R GTI pulled off an impressive zero to 60-mph time of 4.8 seconds.

The chief contributor to the R GTI’s impressive performance is the turbocharged engine developed in conjunction with APR, one of the country’s leading aftermarket Volkswagen tuners. APR develops and sells high performance, and high performance only, leaving others to peddle air fresheners and floor mats. APR’s engineers and product developers are passionate about Volkswagen technology, and it shows in the quality and results of their contribution to the powertrain.

It all starts with Volkswagen’s 2.0-liter FSI turbocharged four-cylinder powerplant, an award-winner for its unique combination of direct injection and turbocharging. APR also replaced the turbocharger with a larger Garrett ball-bearing unit with twice the flow capacity and pumped up the boost to 21 pounds per square inch. All of the pressure-side plumbing was strengthened with silicon hose. A large-diameter cast-aluminum, black powder-coated intake pipe feeds the big turbo the cool air it needs from the larger, front-mounted intercooler, delivering twice the stock air flow. An Inconel exhaust manifold and an APR stainless steel exhaust system ensure efficient flow-through. It’s a tidy, factory-like transformation, and the result is a whopping 375 horsepower, on 93 octane pump gas. If 100-octane race fuel is used, output rises to some 400 horsepower.

The exciting visual impact of the R GTI exterior is reflected in the interior, which is swathed in black leather complemented by red stitching. This theme runs throughout the cockpit, from the upholstery that covers the front Recaro Pole Position sports seats and rear custom-designed racing buckets, to the door panels and steering wheel, which also sports an R GTI logo. The effect is a blend of understated luxury and purposeful technology, underscored by the use of OSIR black carbon-fiber interior trim on the dash panel and in the doors.

Just aft of the front bucket seats is a clever safety belt system that was developed in the design studio. A remarkable example of the innovations that spring from Jenkins’ creative team, it’s comprised of a bar that anchors the front racing harnesses, which can swing up and out of the way to allow passengers easier access to the two rear seats. As part of the R GTI’s weight-reduction program, the stock rear seats were removed and replaced by an exceptional piece of carbon-fiber craftsmanship. The single piece of composite was fashioned into two racing buckets, each fitted with padded leather inserts. They’re a snug fit but are comfortable enough to take the in-laws on a fast lap or two. Another trick interior element is the custom aluminum billet shift knob, which Jenkins fit with a red “wheel” that can be revolved by the driver’s thumb. Look closely, and you can see that the wheel has been inscribed with the R GTI logo.

The R GTI is an uncommon and visionary blend of design talent, factory technology and aftermarket innovation, and an enticing demonstration of why Volkswagen has been a favorite of automotive enthusiasts since the GTI first hit the scene 30 years ago. It also shows that the future of the hot hatch, as demonstrated by the R GTI, is already here.

Mazda RX-8 Motorsport Concept

Mazda Australia unveiled the first of its “extreme cars”, a turbocharged RX-8 Motorsport Concept, at the 2004 Australian International Motor Show in Sydney. The “extreme” RX-8, which was conceived by Mazda Australia’s motor sport manager Allan Horsley, is powered by a turbocharged and intercooled rotary engine that is expected to develop about 360 horsepower . The car also features 19-inch wheels and tires, a high performance racing brake package, retuned suspension and Mazdaspeed body kit parts for a more aggressive look.

Motor sport manager, Allan Horsley, said: “The RX-8 Motorsport Concept was a must do challenge for us and thanks to the engineering sophistication of the production car it all came together in just a few months. “We plan to give some of the motoring media with racing experience the opportunity to enjoy the fruits of our labour at a track day drive event”.

The RX-8 Motorsport Concept makes its intentions known with an aggressive looking Mazdaspeed nose with integrated spoiler and big air intake as well as a large and adjustable Mazdaspeed rear wing. Velocity Red mica metallic paint and attention grabbing white “GT stripes” run along the car’s sides, while bonnet flutes further hint at the car’s added performance and aid under bonnet cooling.

Riding on striking white-painted, 19x8-inch alloy wheels, the concept features different tire sizes front and rear. 235/35 tires are used on the front wheels and larger 255/35 tires on the rear, helping deliver the concept’s prodigious power and torque to the road. The production RX-8 boasts 18x8 alloy wheels and 225/45 tires. A centre-mounted rotary-shaped brake lamp completes the strong visual statement made by the RX-8 Motorsport Concept.

The car’s revised suspension, which drops the ride height by almost 1 inch, improves the standard car’s class leading dynamics and adds to the concept’s visual impact. Suspension modifications focus on new specification, stiffer Eibach springs that help improve the already impressive grip offered by the RX-8’s multi-link front and rear suspension. The revised suspension settings, which help reduce body roll, further sharpen responses from the car’s electric-driven rack and pinion steering.

Promising considerably more power and torque than the standard car, the RX-8 Motorsport Concept features a Renesis rotary engine complete with a water cooled Garret turbocharger running 7.5 lbs of boost pressure and a large air-to-air intercooler. These modifications and a re-programmed Power Control Module that maximizes the engine’s efficiency are expected to boost power by more than 52 per cent over the production RX-8. The engine’s pulling power, or torque, receives a substantial boost over a wide rev band, with it peaking about 260 lb-ft, an increase of almost 65 per cent over the road car.

Using a relatively small and low-boost turbo ensures good throttle response and maintains the free-revving nature of the road car’s normally aspirated rotary engine.

The RX-8 Motorsport Concept’s compression ratio and redline are unaffected, allowing the turbo engine to race to 9000 rpm.

A larger, free-breathing exhaust system ensures maximum power gain while a new muffler also aids breathing and delivers a throatier, more purposeful exhaust note.

Braking is by an Alcon six piston racing system that features 335 mm vented and grooved discs. Similar systems are used in world rally, Japanese GT, V8 Supercar and NASCAR racing.

Other mechanical upgrades include a smaller but more powerful battery, while a larger core radiator ensures the engine runs within its ideal temperature range under all conditions.