The 2000 Jaguar XK8 is available as a 2-door, 4-seat coupe. Starting at $66,500, the 2000 Jaguar XK8 Coupe is powered by a 4.0L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway. The top of the line 2000JaguarXK8Convertible , priced at $ 71,500 , is powered by a 4.0L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 24-mpg on the highway.