The Jaguar XK is a thoroughly modern car, having completely redesigned and re-engineered for 2007, and it competes well with the latest versions of the Mercedes-Benz SL, BMW 6 Series, and Cadillac XLR.The outgoing Jaguar sports car, the XK8, lasted 10 years on the market and, toward the end, had become a patchwork as new technologies such as satellite radio, navigation and airbags had to be adapted to it. Its V8 horsepower number began with a 2 instead of a 3, putting it way behind the competition. There were also new safety and emissions goals to be met. So for 2007, Jaguar replaced the XK8 with a brand-new car from the ground up, the first aluminum-chassis sports car in Jaguar's six decades of production.Click here to read more