The 2015 Jaguar XK is available as a 2-door, 4-seat coupe. Starting at $84,500, the 2015 Jaguar XK Base Coupe is powered by a 5.0L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 24-mpg on the highway. The top of the line 2015 Jaguar XK XKR-S Convertible, priced at $138,000, is powered by a 5.0L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 22-mpg on the highway.