Cadillac STS | The Classic Seville Has Been Reborn The Cadillac STS is a modern day replacement of the 1950's coupe known as the Cadillac SeVille. This car set the bar high though for the STS, being one of the fastest and most luxurious cars of its time, though it took a few generations to get there. It currently features optional V6 and V8 engines. Cadillacsts.net~Site InfoWhoisTrace RouteRBL Check