Cadillac STS

A new 302-horsepower 3.6-liter Direct Injection V6 engine with improved power, fuel economy and reduced emissions is the standard engine.

The STS is available in V6 and V8 rear-wheel-drive and all-wheel-drive models. For the ultimate marriage of luxury and performance, the STS-V is loaded with performance features, including a 469-horsepower Supercharged Northstar V8 engine.

GM's Lane Departure Warning System is available on the STS. Controlled by a camera located in the rearview mirror that reads the lines in the road, the system will alert drivers when they have strayed into another lane. Drivers receive both an audible and visual alert cue.