The Cadillac STS was introduced in 2005 as the successor of the famous Cadillac Seville. The performance-focused STS V-Series started production in 2005 and ended in 2009. The V-series was the most powerful of it’s STS siblings with a 4.4L Supercharged V8, producing 470hp and 440lbs/ft. It was mated to a 6-speed automatic transmission that was capable of 4.6 seconds in a 0-60mph.