The AUDI A6 (2004-09) 4DR SALOON 3.0 TDI QUATTRO S LINE TIP AUTO is a large premium four-door saloon, offering executive comfort over small-car simplicity. In the UK it competes with the BMW 5 Series and Mercedes-Benz E-Class. Mycarcheck.com has recorded 480 look-ups across 184 VINs for this model to date. With an average recorded mileage of 163,000 and about 9,000 miles added annually, these cars have often been used regularly. The average private-sale valuation in the checks is £1,300, while the record shows nearly six previous keepers. That makes condition, maintenance history and inspection especially important when comparing examples. The 3.0-litre diesel, automatic gearbox and Quattro four-wheel drive give it confident all-weather ability and relaxed motorway pace, while S line trim adds a sportier look. It suits drivers, commuters and families seeking a comfortable long-distance car; running costs and age-related repairs may outweigh its appeal for first-time buyers.