Market overview: Which Jaguar models are currently the most popular on the used car market? AutoUncle has analysed 64 used Jaguar cars that are currently for sale at 44 dealerships. The three most popular Jaguar models as used cars are: XF, XK, XJ. Prices start at around £2,995, and the average price for a Jaguar on today’s used car market is £10,780.