The JAGUAR XJ (2010-15) 4DR SALOON LWB 5.0 V8 510 SUPERSPORT AUTO6 is a rare, full-size luxury saloon, rather than a family hatchback or SUV. Its long-wheelbase body prioritises rear-seat space, while the SuperSport’s powerful V8 gives it a more sporting character than many traditional executive cars. In the UK used market, it sits among premium flagships, competing with high-end versions of the Mercedes-Benz S-Class and BMW 7 Series. mycarcheck.com has recorded 152 checks covering 30 distinct VINs, a useful snapshot of interest, though not a measure of every car on the road. Across these checks, the average private-sale valuation was £13,500 and average recorded mileage was 69,000 miles. The average annual mileage was relatively modest at 3,000 miles, while cars had about 3.2 previous keepers on average. It suits buyers seeking comfort, presence and relaxed long-distance travel, especially those who value a distinctive alternative to established German luxury saloons.