The redesigned XF is one of the sportiest offerings among mid-sized luxury sedans. It's taut and agile, yet possesses a supple and composed ride. The 340-hp supercharged V6 is punchy, and a more-powerful 380-hp version is also available. Interior ambiance is a bit austere for a Jaguar, and the standard infotainment system is slow and somewhat fussy. The uplevel InControl Touch Pro system features a 10.2- or 12.3-inch touch screen. The navigation system uses memory of past drives and real-time traffic info to offer alternate routes. All models get a generous 5-year/60,000-mile warranty, which includes free scheduled maintenance and roadside assistance, in an effort to alleviate concerns about reliability.