Cadillac STS

The STS (S-Series Touring Sedan) is a Mid-Size luxury car sold by Cadillac. The luxury performance DNA of the Cadillac STS can be traced all the way back to the special range-topping Seville hardtop coupe of the 1950s. At that time one of the fastest, flashiest and most luxurious cars on the road, it evolved into various different forms over the course of several decades until emerging today as the buttoned-down STS luxury sedan. Based on GM's global Sigma rear- and all-wheel-drive platform and utilizing powerful V6 and V8 engines, the Cadillac STS is once again capable of sharing company with Europe's finest..

Current Cadillac STS
The base Cadillac STS features a direct-injected 3.6-liter V6 rated at 302 horsepower and 272 pound-feet of torque. This impressive power plant and its accompanying six-speed automatic provide similar performance and better fuel economy than the available 320-hp 4.6-liter Northstar V8.

A full-size luxury sedan in its physical dimensions, the Cadillac STS is priced in line with other premium midsize sedans that offer V6 and V8 engines. There are five trim levels -- V6 Luxury Sport, V6 Luxury, V6 Premium, V8 Luxury and V8 Performance. Common features on all models include leather seating, dual-zone climate control, a Bose sound system and OnStar. The V6 Luxury adds perks such as Bluetooth, heated/ventilated front seats, heated rear seats and rain-sensing wipers. The V6 Premium highlights include 18-inch (versus 17-inch) wheels, upgraded braking/steering/cooling systems, auto-dimming xenon headlights, upgraded audio and a navigation system. The V8's trim levels are identically equipped save the Premium, which also boasts adaptive suspension, blind zone/lane departure alert, a sunroof, a head-up display and adaptive cruise control.