Limited edition Cosworth
COSWORTH plus Impreza is sure to equal an explosive mix of power and performance.
So it is that the first Cosworthdeveloped road car since 1996, the Cosworth Impreza STI CS400 pumps out 400PS, is all-wheel drive and delivers a 0-62mph time of just 3.7 seconds. But you’d better note that there is a limited edition run of 75 cars exclusively for the UK market. They are on sale priced from £49,995 on the road.
The Cosworth-tuned, turbocharged vehicle is one of the world’s most accelerative hatchbacks. The renowned 2.5-litre turbocharged Boxer engine is transformed to produce 33 per cent more power, drawing heavily on Cosworth’s extensive Formula 1 experience. The engine, which drives all four wheels via a six-speed manual gearbox, covers a quarter mile in 12.75 seconds at a terminal speed of 107mph. Top speed is limited to 155mph.
The Cosworth Impreza STI CS400 features an extensive range of Cosworth-engineered components in the engine, turbo system, exhaust, suspension, brakes and wheels, plus subtle improvements to the exterior and interior styling to create a truly distinctive high performance car with everyday hatchback practicality.
At the heart of the new car is a heavily revised version of the marque’s Boxer engine. The “flat-four” power unit is removed from the car, hand finished, and several internal and ancillary components are replaced with up-rated items, specified by Cosworth.
The STI Cosworth unit features twin overhead camshafts per cylinder bank (DOHC) plus an Active Valve Control System (AVCS) to deliver variable valve timing and enhance low-speed pulling power.
The overall result is a huge increase in torque higher up the rev range, and significantly improved in-gear acceleration. This not only makes the Impreza more tractable for day-to-day road use, but also a far sharper tool on the race track. Manual transmission and All-Wheel Drive system
To handle the increased power of the Cosworth-tuned engine, the Impreza STI’s six-speed manual transmission has carbon synchromesh applied to the top three ratios and a short throw linkage for quicker shifting.
The full-time All-Wheel-Drive transmission with front and rear limited-slip differentials, features a 50/50 front to rear torque split as the default, however, the torque split is varied electronically according to changing conditions.
Improving the Cosworth Impreza’s handling, steering feel and driver feedback – without compromising ride comfort – was a primary target for the development team.
Retaining Subaru’s original suspension layout and major components, Cosworth and a team of chassis engineers collaborated with Bilstein and Eibach technicians to tailor a ride/handling/steering package that was ideally matched to the new model’s increased performance.
Upgraded “racing” brakes have enhanced stopping power.
The outstanding performance of the Cosworth Impreza is reflected in its stand-out appearance and standard Xenon headlamps. The lowered ride height and wider track give the car a whole new stance, which is reinforced by a front bumper that now incorporates fog lights, a new front lip spoiler, and upper and lower mesh grilles. Also added is a new rear boot-lid spoiler.
Inside, the sporty new Recaro front seats, the rear seats and steering wheel are all re-trimmed in Cosworth-branded black leather. Also distinguishing the CS400 are Piano Black centre stack and trim accents, and the fitment of privacy glass. Standard features carried-over from the WRX STI model include: LED (light-emitting diode) tail lamps, front and rear electric windows, 10-speaker, six-disc radio/CD player, satellite navigation, Smart-entry and pushbutton start, plus front, side and curtain airbags.