The Cadillac STS offers a smooth and powerful driving experience with warm and luxurious accommodations. The supercharged STS-V delivers serious performance but sacrifices some comfort and drivability. People who enjoy getting where they're going as much if not more than being there, but who pine for luxury touches and good old American V8 power, need no longer compromise. Come on home.

NewCarTestDrive.com correspondent Tom Lankard reported on the STS, with Greg Brown reporting on the STS-V, and John F. Katz reporting on the styling revisions.