Launched for 2005, the front-wheel-drive subcompact Cobalt comes in sedan and coupe body styles. Cobalts are powered by a choice of two four-cylinder engines, with the most powerful making 171 horsepower in the Sport model. Last year's SS and supercharged SS trim levels have been dropped. The Cobalt's competitors include the Honda Civic, Ford Focus and Toyota Corolla. Changes for 2008 include new standard safety features and standard satellite radio.