Subaru Cosworth geneva motor showBy Wes Siler PO Edit1104L Worlds Collide: Subaru Impreza WRX STI CosworthYes, that's right Cosworth. The legendary English speed shop, responsible for legendary cars like the Ford Sierra Cosworth and Ford Escort Cosworth, is turning its hand to the Subaru Impreza WRX STI. Think a whale tail will fit? Read… 2/11/10 1:40pm 2/11/10 1:40pmHomologation Ho! Ford Sierra RS Cosworth For Sale on eBayWhat’s a Cosworth? Oh, About $26,500!