The AUDI A6 (2014-19) S6 4DR SALOON QUATTRO 4.0 TFSI V8 SS 450 EU6 STRON AUTO7 is a high-performance executive saloon, offering four doors, everyday comfort and serious pace. Quattro all-wheel drive and an automatic gearbox help it feel composed on UK roads, while its V8 sets it apart from standard A6 models. mycarcheck.com records 333 checks across 100 distinct VINs. In these checks, average mileage is 52,000 miles and annual mileage is 6,000. Average private-sale valuation is £24,300, while cars have had about three previous keepers. These figures describe checked examples, not every S6. This S6 suits drivers seeking comfortable commuting and long-distance travel without giving up acceleration. It rivals fast versions of the BMW 5 Series and Mercedes-Benz E-Class, combining executive-car refinement with quattro grip and a distinctive V8 soundtrack. Expect higher fuel bills than in a regular family saloon, and inspect service history and condition before buying.