The 2010 Subaru Impreza WRX STI is a four-door saloon refresh of the 2008 Subaru Impreza WRX STI lineup. Introduced in 2010, this was the first time that Subaru offered two body styles (5-door and 4-door) to the Impreza WRX STI lineup. It received improvements including suspension (higher-rate springs and thicker front and rear stabiliser bars), standard 18-inch aluminium wheels (optional forged aluminum-alloy BBS wheels), wider rear fenders, and the iconic, large rear spoiler.