New Car: 2011 Subaru Impreza WRX STi Cosworth


The Cosworth badge is back – on a Subaru Impreza. Based on a standard STi, and re-engineered by Cosworth, the 395bhp CS400 aims to set new performance standards. With only 75 being built, it
will be an instant collectors’ item, too.

Racing pedigree runs through the car’s long list of modifications, yet while power output has shot up from the standard 325bhp, so has the price tag: it now weighs in at an eye-watering £49,995.

The 2.5-litre boxer engine remains the same size as normal, but the added grunt comes courtesy of a brand new turbo and remapped ECU. Its internalsare hand finished to ensure that they cope with all the extra power, and the head gasket, con rods, cylinder heads and pistons are tougher and more durable.

A shortened throw and new clutch plate speed up the changes offered by the six-speed gearbox, giving the CS400 a Porsche 911 Turbo-rivalling 0-62mph sprint time of only 3.7 seconds.

Even so, don’t be fooled into thinking that the Cosworth Impreza will be a rock-hard track-day special. Although the ride has been lowered by 10mm and the track has been widened, Subaru claims that new Bilstein gas shock absorbers and Eibach springs improve comfort as well as giving sharper, more controlled handling at the limit. There are larger, 355mm ventilated discs from AP Racing at the front, with heavy-duty six-pot calipers to rein in the Scooby.

All of the upgrades were deliberately kept simple, the reasoning being that Subaru wanted the Cosworth to be a much faster, harder Impreza that is also a reliable, comfortable and usable everyday car. For more details click here.

Thanks to: Auto Express

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