Unlike its predecessor, the Cadillac STS was introduced with a standard rear-wheel drive layout or an optional all-wheel drivetrain. Two engines choices were presented on the 2005 STS consisting of a ...

The performance, ride, interior, and technology of the STS are all top-notch. It's available with either a V8 or V6 engine, and with either rear-wheel or all-wheel drive. Push-button start, ...