The AUDI A6 (2008-11) 4DR SALOON 2.0 TDI CR DPF EU5 170 S LINE is a spacious, premium four-door executive saloon, positioned above mainstream family cars in the UK used-car market. S line styling adds a sportier look, while its roomy cabin and diesel engine make it well suited to longer journeys. mycarcheck.com records include 95 checks covering 43 VINs, offering a snapshot of cars shoppers have researched. The average private-sale valuation was £3,600, with recorded mileage averaging 129,000 miles and about 5.2 previous keepers, so check each car’s history, condition and maintenance. This A6 suits commuters, couples and families seeking comfortable motorway transport, with more refinement and prestige than many mainstream saloons. It competes with BMW 5 Series and Mercedes-Benz E-Class models, offering a composed, understated alternative with S line visual appeal. The diesel suits drivers covering regular longer distances, though age and mileage make condition checks essential.