The JAGUAR XJ (2007-09) XJ 4DR SALOON 2.7 TDVI 204 SOVEREIGN AUTO6 is a large, four-door luxury saloon, aimed at the premium end of the UK used-car market rather than everyday small-car buyers. It combines a spacious cabin and automatic transmission with a diesel engine, making it well suited to comfortable longer journeys. Mycarcheck.com records 568 look-ups covering 209 different VINs, a useful sample of cars checked by shoppers. The data shows an average private-sale valuation of £4,400 and average recorded mileage of 118,000 miles; typical annual mileage is 4,000. Cars checked had nearly five previous keepers on average, so review each car’s history carefully. The Sovereign trim feels more upmarket than mainstream saloons, with a relaxed, refined character suited to executives, couples or families wanting space and comfort. It stands apart from German rivals through its distinctive British styling; condition, maintenance and long-term ownership costs deserve particularly careful checks.