The MERCEDES-BENZ GL (2006-09) GL500 5DR SUV 5.5 AUTO is a large premium SUV, a high-riding alternative to a luxury estate and substantial family transport. Its automatic gearbox and 5.5-litre petrol engine favour relaxed journeys over urban motoring. In the UK used-car market, it occupies the luxurious end of the 4x4 choice. mycarcheck.com records 67 look-ups covering 24 different VINs, giving a useful snapshot rather than a complete picture of every GL500. Across those checks, average private-sale value was £4,900, while average recorded mileage was 129,000 miles; annual mileage averaged 3,000. The typical car had just over three previous keepers on record. Roomy, commanding, the GL500 suits families seeking longer trips or buyers wanting an SUV with towing ability. It stands apart from the BMW X5 and Audi Q7 for its imposing size and V8 character. Expect petrol use and upkeep to be significant, so check service history and budget carefully.