The XTS is Cadillac's flagship and as such benefits from the company's trademark design, a spacious and high-quality interior, and substantial safety and multimedia equipment. The XTS comes powered by GM's popular 3.6-liter V6 driving the front-wheels through a six-speed automatic transmission. While this powertrain's 304 hp provide only adequate performance, the XTS offers an impressive blend of comfort and handling, especially if equipped with the optional all-wheel-drive.