The MERCEDES-BENZ S CLASS (2017-20) S500L 4DR SALOON LWB 3.0 SS 457 EU6 AMG LINE EXECUTIVE 9G-T+ AUTO is a long-wheelbase luxury saloon, sitting near the top of the UK executive-car market. It prioritises rear-seat space, quiet comfort and polished presentation over small-car practicality, with AMG Line styling adding a sportier edge. mycarcheck.com recorded 796 look-ups covering 46 distinct VINs, a useful level of interest in this relatively rare, high-value model. Its checks show an average private-sale valuation of £41,000, average recorded mileage of 31,000 miles and annual mileage of around 5,000. These figures suggest many examples are lightly used, though each car’s history and condition still need checking. Best for buyers seeking a chauffeur-friendly family car or long-distance cruiser, the S500L offers smooth performance and a notably comfortable cabin. Its size and running costs can challenge urban or budget-focused drivers. Against the BMW 7 Series and Audi A8, it stands out for luxurious feel, rear space and presence. This used Mercedes S-Class suits comfort-first buyers.