​ Available for the UK market only, the Cosworth Impreza STI CS400 was announced in late May 2010. Only 75 units built, the STI CS400 is powered by a 400 PS (395 hp) The Cosworth-tuned, turbocharged vehicle is one of the world's most accelerative hatchbacks. The engine, which drives all four wheels via a six-speed manual gearbox, boasts an impressive 400 PS and the new model reaches 62 mph in just 3.7 seconds and top speed is limited to 155 mph. The 2.5 litre turbocharged engine has Cosworth engineered forged connecting rods, racing pistons, heavy duty cylinder head studs, multi-layered head gasket, and high pressure oil pump. The ECU has been remapped, and the new compressor design and wastegate actuator had been applied to the turbo. The exhaust system features larger capacity tubular manifold and bigger diameter downpipes. The clutch was also upgraded. The Cosworth Impreza STI CS400 can be distinguished from the regular STI from its upper mesh grille with piano black finish on the top frame, modified front bumper with "Cosworth" emblem on the lower mesh grille, and lip spoiler, 18 inch Pro-Race alloy wheels in Anthracite, and boot spoiler. To match its performance, the CS400 comes with Bilstein struts and Eibach springs for better quality ride, and better handling with less pitch and roll during cornering. Braking was updated by AP Racing's larger diameter ventilated front brakes with six-pot calipers. Inside, the CS400 has Recaro leather seats with "Cosworth" label, piano black center console panel, and "Cosworth"-badged floor mats. ​This rare Subaru Impreza Cosworth CS400 is one of just 75 produced and is finished in Spark Silver metallic with a grey and black leather interior and has the following specification: ​ Cosworth tuned 2.5L engine producing 400 ps 6 Speed manual gearbox AP Racing 6 piston front brake calipers Automatic climate control Remote central locking Multifunction steering wheel 18" Pro Race alloy wheels finished in anthracite Recaro front seats Piano black trim ​​​​ It has covered just 12k miles from new and has a full Subaru service history as detailed below: ​ 23/04/2012 - 1,072 miles - Subaru 17/04/2013 - 5,690 miles - Subaru 01/05/2014 - 6,507 miles - Subaru 02/02/2017 - 9,129 miles - Subaru, service with cam-belt 10/01/2018 - 9,635 miles - Subaru 11/07/2019 - 11,521 miles - Subaru 04/02/2020 - 11,636 miles - Subaru 2021 - Vehicle entered long-term dehumidified storage with ourselves ​​ It will be fully serviced with a cam-belt change at point of sale. ​ Please contact us for more information or to enquire about our finance or transportation options. ​