Now in its 37th year, the SEMA (Specialty Equipment Market Association) prides itself in being the premier automotive trade event in the world, offering two million square feet of exhibit space filled with products dedicated solely to expanding the performance of our cars, trucks, and SUVs. Every year, our editors pack their most comfortable shoes and travel across the desert to the Las Vegas Convention Center, drawn to this automotive Mecca for a nitrous-charged religious experience.
This year, we drove out in a Mitsubishi Lancer Evolution, with turbo in full song and carbon-trimmed wing raised in rebellion. We traveled across the dusty plains that separate Vegas from civilization, flirting with triple-digit speeds and savoring what is essentially a factory tuner car. As we lived our restrained "2Fast 2Furious" fantasies, we were anticipating the opportunity to wander the miles of aisles weaving among more than 1500 tricked-out vehicles and thousands of additional parts, tools, and components, all designed to push the automotive performance and styling envelope.
Our focus this week was on the OEM projects vehicles; stock vehicles transformed by both internal development teams and provided to leading aftermarket firms to showcase their wares and the latest trends. Naturally, a few unofficial projects caught our eye as we gathered a collection of the most significant, standout vehicles from a truly overwhelming event.
Literally hundreds of vehicles caught our attention, and we've sorted through them all to include the cream of the crop here for your review. We could have kept going, but all good things must come to an end, sometime.
Remember to click on any image to zoom in on its enlargement. Enjoy!
Easy Street Motorsports (ESX) starts with the already enthusiastic Subaru WRX and gives it a three-step makeover; base-level ESX tuning nets 344-hp and a 4.5-second 0-60-mph time, while the mid-level ESX500 package gets 500 hp and 3.8-second 0-60 times. The full-on ESX 740 setup becomes a monster street car capable of 0-60 mph times under two seconds and quarter mile times faster than 140 mph. Don't let the "740" badging fool you, ESX owner and race driver Ali Afshar claims the actual horsepower is above 800, thanks to a Toni Rigoli Performance-built EJ20 stroker engine boosted by Innovative GT72 turbocharger, top-mount intercooler, dual-stage NOS Nitrous Oxide system, MicroTech LTX-8 engine management chip, and an array of products from Subaru Performance Tuning. An automatic tranny transfers power through the Subaru AWD to BFGoodrich Comp T/A 255/06R16 drag radials.
We never expected to use the words "cool" and "Aveo" in the same sentence, but Chevrolet impressed with a cool Aveo project car that looks equal parts "Fast and the Furious" and Renault R5 Turbo. The Daewoo-sourced five-door has been transmogrified with complete wide-body kit, featuring new fascia, fender flares, rear fascia, rocker moldings, custom lamps, roof-mounted wing, body-colored badging, and Sparco locking gas cap. The suspension was lowered two inches, then each corner was fit with Kineses K58 two-piece 18x-8-inch wheels wearing Toyo Proxes 4 P215/35ZR18 tires. The interior features Spaco EVO body-hugging seats front and rear, Sparco Mugello steering wheel, aluminum pedals, and full-length console with integrated Sony PlayStation 2. With just the stock 1.6-liter inline-four underhood, the car's thunder comes from aPioneer AVHP 6500 AM/FM stereo that also includes CD, DVD, and MP3 playback, along with XM Satellite Radio and a 7-inch touch screen.
The Xtreme package proved successful in transforming the S-10 into a sport truck with an aftermarket-sleek exterior and more agile suspension package. The name carries over to the more powerful replacement, the Colorado, as this SEMA concept portends of future components available through GM Service and Parts Operations, if not direct from the factory. This Xtreme model showcases a dramatic body kit, with front fascia, wheel flares, rocker extension moldings, rear fascia, and hard tonneau cover. The Intro Prowler 18x6inch polished billet aluminum wheels are fitted with Dunlop SP9000 LT255/45R18 tires. Inside, the pickup features trim and headliner treatments to tie in the color theme.
Another all-new vehicle received the Xtreme treatment, the 2005 Equinox. Exploring its modification potential, Chevrolet fitted the 3.5-liter V-6 with a Garrett turbocharger and Vortech liquid-to-air aftercooler, then applied redesigned intake and exhaust cylinder head ports. The combined effect creates 305 horsepower at 5600 rpm, with 300 lb-ft of torque at 4400 rpm. More likely to see production is a body kit, shown here with aero enhancements for all sides. The Equinox was lowered three inches and fitted with 20-inch wheels, giving it greater, road-hugging impact. Several carbon-fiber trim pieces play off the intense three-stage yellow paint scheme for a show-caliber appearance.
The creative types at Chrysler have created yet another PT Cruiser variant. Developed from the PT Cruiser Convertible that goes on sale in early 2004, Chrysler and partner Decoma International crafted a hardtop coupe with a functional drop tail. A Mopar coilover suspension kit contributed to the lowered stance, augmented by Colorado Custom 19x8-inch wheels. The 2+2 interior is trimmed in navy blue leather with light pearl beige highlights. On the tech side, the standouts are a rockin' 900-watt, 18-speaker sound system and rearview mirror monitor, connected to a rear spoiler-mounted camera. The production 2.4-liter turbo engine has been fitted with a Mopar Stage 1 turbo upgrade, and exhales through Borla pipes, for a 235-peak output.
The asphalt-kicking sport compact Neon SRT-4 is pushed to the next level with this Extreme project car shedding pounds and bulking up its muscles. Extensive use of lightweight carbon fiber and composite parts has reduced the weight of the Dodge SRT-4 dramatically - by an estimated 500 pounds compared to the production SRT-4. More exciting is that the SRT-4 Extreme features a prototype edition of a potential future Mopar Performance turbo upgrade kit and a ride-height-lowering Mopar Stage 3 coilover suspension kit. The project car also features a Mopar short-throw shifter, Mopar blow-off valve kit, Borla catalyst-delete resonator, Michelin Pilot Sport Cup race tires, brake kit from StopTech, SSR semi-solid forged wheels, six-point harness from TeamTech, Recaro race seats and Moroso detachable steering wheel. Equipped with a subtle body kit, it features a subtle bright silver metallic exterior, with lightweight carbon fiber hood, deck lid, front and rear fascias and door assemblies. Created with the track in mind, the SRT-4 Extreme also demonstrates the Neon's street potential.
Not the prettiest girl on the dance floor, the Dodge Viper SRT-10 Carbon was designed to be the ultimate street-legal sports car. Already a venomous legend, the Viper V-10 engine was thoroughly upgraded to reach 625-horsepower. Likewise, the suspension features tunable shocks with adjustable ride height, titanium high-rate springs, and stiffer anti-roll bars. The Viper Competition Coupe race car parts bin provides a high torque bias racing limited-slip differential, differential oil cooler, racing seats, and competition harnesses. The most apparent upgrade is the weight reduction therapy conducted with serious carbon fiber replacement surgery. The hood, decklid, front air splitter, and top are all clear-coated carbon fiber. Helping further is a set of lightweight 18- and 19-inch wheels.
Amid hundreds of modified vehicles, GM unveiled the production version of the 2005 Hummer H2 SUT at the SEMA show. Bearing close resemblance to the SUT concept shown at the 2001 New York Auto Show, the production truck features a 6.0-liter/316-horsepower V-8 and Avalanche-like Midgate. The rear window powers down into the Midgate, then the Midgate and rear seat fold forward allow the H2 SUT to hold a 4x6-foot sheet despite having a decidedly short bed. To aid the Hummer with its go-anywhere abilities is a touch-screen navigation system, OnStar, and XM Satellite Radio. To be built at the AM General assembly facility in Mishawaka, Indiana, the H2 SUT will go on sale in the second quarter of 2004.
Joe Polimeni photo
In demonstrating the numerous uses for the H2 SUT cargo bed, the Hummer team changed its configuration throughout the show. We caught it showing an off-road dirt bike package with brushed aluminum carrier, though we missed seeing how the bikes were pushed up into the precarious position. Other configurations included a canvas storage package targeting campers with a squared-off back with zip-in screens, and a more traditional hard tonneau with a storage basket. Being SEMA, this project vehicle was augmented with an Eaton supercharger and ceramic-coated, low-restriction exhaust that offered a combined output from the 6.0-liter engine of more than 400 horsepower and approximately 470 lb-ft of torque.
Pontiac pushed the Grand Prix performance envelope with the Autocross concept, focusing on the often mutually exclusive attributes power and handling. The stock 3.8-liter V-6 was replaced with a 5.3-liter V-8 tuned to produce 350 horsepower. The additional weight required a suspension revision, so Pontiac took it a step further with track-tuned shocks and springs lowering ride height and improving response, along with larger anti-roll bars front and rear. Behind the 18-inch wheels wrapped with BFGoodrich g-force T/A KD performance tires are custom rotors and calipers from Stainless Steel Brake Corp. The exterior features several custom carbon-fiber pieces, including an all-carbon hood. The front and rear fascias, and rear spoiler are also enhanced carbon pieces. Inside, sport touches include aluminum pedals, sporty, sleek seats trimmed with Naugahyde material, and Delphi custom gauge cluster package with redesigned graphics.
Like many enthusiasts, we were anxious to see what GM had cooked up for the GTO. Not put off by the "Autocross" name, we were pleased to discover that the muscle has been toned, as well. The 5.7-liter LS1 V-8 engine has been pumped up with a new camshaft and LS6 (think Corvette Z06) heads to boost power to 400 horses. The dynamics were improved by simply upgrading to Stainless Steel Brakes Corp. rotors and calipers and 18-inch BF Goodrich g-force T/A KD performance tires. Other modifications come right from the Pontiac accessories catalog, including front and rear fascia extensions, rocker panel, rear spoiler, and symmetrical dual exhaust. The best part of this hot car is that most elements to build your own are available at your local dealership.
Will parachutes become the next fashion trend, taking the place of Supra-sized rear wings and neon as the latest non-essential accessories? Only in the 200-mph club to which this Saturn Ion proudly belongs. Last month, this car set a land-speed record in the G/Blown Fuel Altered class by averaging 212.684 mph, besting the previous 183.086 record mph record set in 2001 by a Honda Civic. This multi-team engineering saw output on the production supercharged 2.2-liter/200-horsepower Ecotec engine soar. The salt-flat racer used an exhaust-driven turbocharger and burned methanol fuel to boost the Ecotec's output to 700 horsepower. As extreme as this sounds, the Ecotec engine produces more than 1100 horsepower in the front-drive Chevrolet Cavalier and Pontiac Sunfire entries in the NHRA Summit Sport Compact drag racing series. The record-setting engine shares a surprising number of components with the production engine. To help enthusiasts with their horsepower pursuits, GM has just released the "Ecotec Engine Handbook" available through local dealerships.
The Vue Street Play is all about statement-making performance art. This project vehicle takes the 250-horsepower production Vue Red Line to the next level in looks, handling, and acceleration. The Honda-sourced V-6 engine is force fed with a Comptech-installed Eaton supercharger, good for 300 horsepower. The suspension is lowered three inches, making it four inches shorter than a non-Red Line Vue, using Koni struts. Behind 20-inch TOYO Proxes P255/45ZR tires on two-piece HRE polished aluminum wheels at each corner lurk Stainless Steel Brake Corp's front and rear performance disc brakes, sporting a 12.8-in. diameter front rotor with dual piston aluminum caliper and a 12-in. diameter rear rotor with single piston aluminum caliper. The dramatic body work features carbon-fiber inserts throughout. The interior features Recaro racing seats, full-length console fitted with two Apple iPods, white-face gauges, and black Ultrasuede trim.
Separate from its display of tuner cars, Toyota presented its 35th anniversary Corolla XRS, destined to launch in the spring of 2004. Aimed at young, performance-driven buyers, the XRS will feature a newly tuned version of the 2ZZ 1.8-liter/170-horsepower DOHC engine and six-speed tranny found in both the Celica GT-S and Matrix XRS, promising sub-8-second 0-60-mph times while still maintaining fuel economy of 26 mpg city and 32 highway. Underneath is a sport-tuned suspension, 16-inch alloy wheels, and Michelin performance tires. Inside, performance-themed accoutrements include sport seats, silver-colored switchplates and instrument cluster, and unique badging. The Corolla XRS will be built at Toyota Motor Manufacturing in Cambridge, Ontario (Canada) alongside the Matrix, and will arrive in showrooms in May 2004.
Tuner/Artist L.J. Garcia put his imprint on this little Scion xA by adding a 12-piece wide body kit and modified rear spoiler by USA Fiberglass, carbon-fiber hood and roof by A.S. Kustomz, and dual sunroof by Webasto. Inside are four Sparco racing seats, fiberglass door panels and dash by U.S.A. Fiberglass, and a suede interior by Advance Specialties; a pounding A/V system includes a Pioneer head unit and four televisions, broadcasting through three pair of door speakers and four subwoofers, all by Audiobahn. This boxy bling thing even shines downstairs with a powder-coated undercarriage. For urban street cred and ultra-low parking height, this Scion rides on a CVN motorsports air-ride suspension. At each corner is a massive 19-inch Racing Hart wheel (8.5-inch wide front, 10-inch rear) wrapped by BFGoodrich rubber. The engine has been polished by Injen Technologies, who also added the air intake; dual carbon fiber exhaust with titanium tips is from AC Autotechnique.
It seems no vehicle is excluded from tailor-made aftermarket enhancements, as evidenced by the tastefully executed Chrysler Pacifica Santa Monica. Addressing the needs and refined tastes of urban motoring enthusiasts, this Pacifica project is slathered in a gorgeous Magnesium paint, giving it a the full monochrome treatment from rocker panels to roof. The metallic color is complemented by 20-inch chrome TSW Heaven 7 wheels and Continental SportContact 245/45ZR20 tires. Performance modifications are limited to a sportier suspension that lowers ride height and four-piston calipers fitted to larger brakes.
Shame such a generic name was given to this bright orange firecracker, as it demonstrates the Focus performance potential that is available through local dealerships. Starting with an already fiesty SVT Focus, this car features a Jackson Racing supercharger, suspension lowering kit, Ford Racing Tuner 17-inch, 10-spoke wheels with Goodyear Eagle F-1 GS-D3 tires, and Borla cat-back exhaust. The exterior is dressed with a full body kit, including front and rear fascias, rocker panel extensions, and rear gate pieces. This package will become available during 2004 as an official Ford accessory. Cars like this make owning a hot, modified car seem easy.
Looking like a feature film star car, this Ford Focus by Evolution in Motion is pure first unit, as it has all the looks, but no cook. The engine is about the only thing left untouched on this ZTS sedan. The two-tone Focus features KW Suspension Variant 1 coilovers, Eibach anti-roll bars, and The Brake Man four-wheel "street" discs. To each corner are fitted Bonspeed 19x7.5-inch Speed Six wheels with Yokohama Parada Spec 2 215/25R19 tires. Fenders and lights are sourced through BAT Inc., with the headlamps coming from Morette Design. The ultimate magic with this wild car is the paint scheme, inside and out, from Wet Works Garage. The cockpit is further customized with upholstery by Stichcraft Custom Interiors. We'd prefer the imaginary "second unit" car, with much of the same looks, but more straightline performance.
Pitched as the truck for the "ultimate utilitarian," this green machine from Hulst Customs gives new style to an F-150 Super Crew 2x4 XLT. Rather mild by SEMA standards, the modifications to the 5.4-liter Triton V-8 are limited to breathing, with a CGS Motorsports air intake and PowerTrain-Flowmaster exhaust system. Dynamics are enhanced by a new Air Ride Technologies intelli-ride system and binders from Stainless Steel Brake Corp. Pirelli FRT tires increase grip, with large 265/35R22 front, and 205/40R22 rears. The main versatility trick here is a custom-built, electric utility cart and bed insert that helps access tools at the job site.
Performance West created what it terms the "ultimate off-road vehicle" with this F-150 Super Crew 4x4 Lariat. The 5.4-liter V-8 is fitted with a Kenne Bell supercharger, raising output to an impressive 450 horsepower and 550 lb-ft of torque. To handle the power, the automatic transmission has been fortified. The Cyclos Wheels wear BFGoodrich g-Force T/A KDW 325/55R22 tires and hide enhanced discs engineered by Stainless Steel Brake Corp. The show-worthy exterior is fitted with a custom front fascia, fender flares, side skirts, and rear fascia, then drenched in Felx Products SpectralFlair holographic metal flake paint. Also note the Webasto electronic folding tonneau, B-Cool Billets grille, and chromed tow hooks. A sharp, fun ride, we're not convinced that it is the ultimate off-roader, especially with a stock suspension and 22-inch wheels, but it is still a modification inspiration.
Ready for adventure or foreign beachhead, the Jeep Liberator CRD Diesel explores style and function enhancements, while making diesel engines cool. Showing off the Common Rail Diesel engine sold overseas, this project vehicle puts it to use driving four 16x8-inch bead lock wheels shod with trail-ready Goodyear Wrangler MT/R 315/75R16 tires. Other adventure prep includes a top-of-the-line GPS navigation system, entertainment system, canvas roof with a full-length sliding panel, four vinyl-trimmed bucket seats, 9,000-lb. winch, and radical steel bumpers. For serious off-roaders who embrace mud like an elixer, the Liberator has been stripped bare of carpeting and leather for a true hose-out interior. Bonus points are given for the masterful play on the Liberty name. While it may remind some enthusiasts of certain series of Gov. Schwarzenegger films, it is a great salute to the Boeing B-24 bomber that made a serious, uh, impact during WWII. The Liberator colors even remind of those great planes.
American Expedition Vehicles (AEV) has a reputation for not only enhancing but reinterpreting the Jeep Wrangler. Like the Brute concept shown last year, this show vehicle suggests what the Scrambler will look like when it goes in to production next year. For those who can't wait, AEV can build one for you today. AEV will even fit the Brute with a 5.7-liter/345-horsepower Hemi V-8, which they claim will send this 4x4 from 0-60 mph in under six seconds. This vehicle carries the firm's replacement hood, five-spoke wheels, and rocker guards, along with a push bar, winch, and tonneau cover.
Toyota and Yamaha have teamed up to develop a show truck that demonstrates hauling motorcycles and ATVs can be as much fun as riding them. This fourth generation of the "Yamahauler" concept is packed with such upgrades as Walker Evans 17-inch bead-lock wheels wrapped in Goodyear Wrangler MT/R 285/70R17 tires, Donahoe Racing's performance suspension with off-road coil-over front shocks that lift the truck two inches, a Line-X sprayed bed coating, and Universal Engineering bed rack to keep motorcycles snug during transport. Underhood, a supercharger developed by Toyota Racing Development helps haul the load by boosting horsepower from 240 to 353 and torque from 315 to 359 (both at 5200 rpm). Inside, a DVD player and Nintendo GameCube allow backseat passengers to watch moves and play games on headrest screens from MECIS wireless.
The ultimate accessory for any homeowner are his and hers vehicles in the driveway. In this case, "Hers" is a tricked-out family mover featuring Katskin leather seats and B&I Dash Co. interior trim kit for comfort and panache inside. American Products mufflers, grill, and 18x8 Icon wheels wrapped in Toyo Proxes tires combine with an Eibach Spring lowering kit, Macco Auto Body custom silver over gray two-tone paint job, and Jones Custom pinstriping to ensure the neighbors notice she is traveling in style.
The partner to "Her" Quest is "His" Maxima sedan, also built by Kenney's Garage, and featuring all the same upgrades (they liked them so much, they did it twice!) listed above, with one exception: Because size is so important to most men, "His" Maxima benefits from larger 20x8-inch Icon wheels from American Products Co. Let the neighbors talk...
Hyundai came to SEMA with more than a dozen showpieces, including this Santa Fe worked over by K-Daddy Kustomz. Beyond the flashy Dupont Kustom Kolor paintjob and graphics, this spicy sport/ute benefited from performance modifications including Nitrous Express nitrous system, APC cold air intake with APC filter, Toyo Tires T1s Proxes wrapped around 18-inch front and 20-inch rear KMC wheels, and an air suspension fully adjustable front to back and side to side. A Street Beat rag top opens to shed light on its custom roll cage, and inside or out, observers can enjoy an MA Audio/DVD system boosted by two MA Audio Competition 12-inch subwoofers, three MA Audio DVD monitors, and multiple MA speakers.
Owner Shawn Williams established street Concepts in 1998, and since then he has won a variety of awards for his work building show vehicles for an array of manufacturers. This year, Street Concepts has given this Hyundai Tiburon the full workover, including a Shark Racing Throttle body, Borg-Warner AirWerks turbo system, Spearco intercooler, and VeilSide high-performance exhaust system. At each corner, Brembo brakes are clamped onto Racing Hart Evolution three-piece 18x8.5-inch wheels wrapped in Toyo Proxes tires. The performance mods are accompanied by exterior flash supplied by a VeilSide body kit and rear carbon fiber wing, APC carbon fiber hood, Fix Auto Collision paint, and Garage Graphics. All that zing also sings thanks to a complete Kicker car audio system installed by Advance Mobile Systems.
Lexus commissioned Rod Millen Special Vehicles to explore the performance potential of the sporty IS platform when motivated by the normally aspirated 4.3-liter V-8 from the GS430. Built to be driven hard and often, this Lexus is no trailer queen: realistic performance modifications include custom-made tubular stainless-steel headers, dual high-flow catalysts, and low-restriction mufflers. A resulting estimated 340 horsepower make their way to the pavement via Getrag six-speed manual transmission linked to the GS430 driveline and a 3.789:1 limited-slip differential. The double-wishbone suspension benefits from adjustable height coilovers with 16-way adjustable TEIN shock absorbers. Stopping power is provided by Brembo four-piston aluminum calipers clamped onto vented and cross-drilled 355x32mm front and 345x28mm rear brakes mounted to SpeedStar SSR 18x8-inch front and 18x9-inch rear wheels wrapped by sticky Michelin Pilot Sport Grip (225/40ZR18 front, 265/35ZR18 rear) tires. Front and rear spoilers and sideskirts are by Rhys Millen, and Foose Design slathers the whole caboodle in a rich red and black paint scheme.
This aggressive-looking little Miata by DG Motorsports promises blazing speed to go along with that fiery appearance, thanks to a heart-pounding performance modifications along with a road racing suspension, Racing Hart wheels, and Toyo racing tires. Its 1.8-liter DOHC 16-valve I-4 engine with VVT is boosted to 250 horsepower by a Flyin' Miata FM2 turbo kit, suspension, dual exhaust, and aluminum radiator, all by AWR. DG Motorsports also added a carbon fiber adjustable wing, fenders, hood, side skirts, and Racing Beat hard tonneau cover. Dan Hatch applied the hot paint and added graphics by Modern Image. Safely strapped in by a Simpson harness system, passengers travel in comfort in Cobra Opus seats wrapped in suede upholstery, while enjoying a Blaupunkt DVD entertainment system.
Built by Acura to compete in the NHRA All-Motor Class, the skunk2 pushes the class rules to the limits without incurring a weight penalty. Powered by an alcohol-injected 2.4-liter DOHC VTEC engine on a K24 block with K20 cylinder head package, it also benefits from custom ultralight roller rocker arms, Skunk2 camgears, camshafts, and valve springs, Cunningham rods, custom pistons, lightweight custom flywheel and carbon-carbon clutch, as well as Skunk2 custom header and intake manifold. The RSX unibody has been integrated with a strong but light chromoly tube frame, multi-link rear suspension, and Skunk2 racing shocks with titanium springs. The super flat black paint job matches the Goodyear tires quite nicely, making the car look deceivingly unassuming.
Duke Tubtim has already displayed his Acura NSX at several shows this year, garnering awards wherever it goes. There's more to this car than just a body pieces and carbon fiber hood and wing; Tubtim has created this 322-horsepower V-6 rocket using a variety of high-performance upgrades, such as Comptech Supercharger, Daiken Exedy clutch, Tein RA coilover suspension, and Comptech strut tower. Power is transferred to the pavement through Toyo Proxe T1-S (225/25ZR18 front, 265/30ZR19 rear) tires wrapped around 18x8-inch front and 19x9.5-inch rear Volk Racing GT-7 wheels. Stopping is thanks to four-piston front brake calipers clamping 13-inch slotted rotors. Inside, passengers are strapped by Takata four-point racing harnessed into Bride Zeta 11 bucket seats, and can enjoy an Alpine navigation system with DVD changer and Playstation2 game system.
Unlike the majority of the vehicles presented at SEMA, racing purists can purchase their own rally-ready Lancer Evolution RS directly from a Mitsubishi dealer, rather than commissioning one from an aftermarket tuner. The RS shares the same intercooled and turbocharged 2.0-liter/271-horsepower DOHC four-cylinder engine found in the rocket-like Lancer Evolution, as well as its five-speed manual transmission. But, nearly 150 pounds lighter than the Evo, the 3175-pound RS sheds its rear-wing spoiler, air conditioning, and audio system, as well as its antilock brakes and the power mechanisms for the windows, locks, and side mirrors, all for the sake of improved performance. Besides the strict diet, the RS benefits from a front helical-type limited-slip differential that splits power front/rear and side/side, shifting the bias to the wheel that has more traction for increased performance while turning. The RS also receives a rear crossbar for improved handling.