Cosworth officially announced today that the Impreza STI CS400 will go on sale this June. There will only be 75 of these limited edition units built and prices will be announced at a later date.

The car will deliver an impressive 400PS (395 hp) at 5750rpm and will make the 0 to 60 mph sprint in 3.7 seconds. This is an impressive task compared to the standard Impreza WRX STI at 300PS / 296bhp at 6,000rpm with a 5.2 second sprint. The CS400 will also feature a bespoke brake package with 6-pot calipers and 355mm discs at front and numerous updates to the suspension, exhaust, exterior and interior styling.

UPDATE 05/24/2010: Cosworth officially unveiled the first images of the new CS400 Impreza. Also the company announced today that the car will be priced at £49,995 (almost $72,000 at the current rates). It will be limited to only 75 units.

UPDATE 07/19/2011: During the recent Cholmondeley Pageant of Power (15-17 July 2011), Subaru’s limited-edition Cosworth Impreza STI CS400 has managed to Subaru outpaced a host of high-performance road cars and supercars, including the Nissan GTR->ke1592, Ariel V8 Atom, Lexus LFA->ke2181 and Ford Focus RS500. With an impressive time of 68.18 seconds, the CS400 was six seconds quicker than the second placed car in the Supercar category.

Press release after the jump.

2010 Cosworth Subaru Impreza STI CS400

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  • Model: 2010 Cosworth Subaru Impreza STI CS400
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Press release

The result of one of the most eagerly anticipated automotive collaborations in recent times is heading fast towards Subaru dealerships. The Cosworth Subaru Impreza STI CS400 officially goes on sale in June, and is set to offer performance-car fans the thrill of a lifetime.

Subaru has confirmed the car will boast an impressive 400PS (395bhp) at 5,750rpm, sufficient to dispatch the 0-62mph sprint in just 3.7 seconds (compared to 300PS / 296bhp at 6,000rpm,and 5.2 seconds for the standard Impreza WRX STI). This ensures the Cosworth Subaru Impreza STI CS400 will be one of the most accelerative all-wheel-drive hatchbacks ever.

Subaru also reports that the Cosworth Subaru Impreza STI CS400 will feature a bespoke brake package – with six-pot callipers and 355mm discs at the front – developed in partnership with AP Racing, giving the car prodigious stopping power. Coventry-based AP Racing is a leading supplier of brake and clutch components to teams in the Formula One Championship and the World Rally Championship, as well as to leading supercar brands including Bugatti.

A wide range of further upgrades have been made to the suspension, exhaust and to the donor Impreza’s exterior and interior styling. An exclusive, limited edition run of 75 Cosworth Subaru Impreza STI CS400 will be produced, and full details of pricing and technical specification will be announced closer to the on-sale date.