The AUDI A4 (2008-12) 4DR SALOON QUATTRO 2.0 TDI DPF SS EU5 170 SE 6SPD is a premium, four-door diesel saloon for buyers seeking more comfort and polish than an ordinary family car. In the UK market it competes with the BMW 3 Series and Mercedes-Benz C-Class, offering a practical boot and useful space for passengers. mycarcheck.com data adds context: across 12 look-ups covering five distinct VINs, the average private-sale valuation was £3,500. The cars checked averaged 146,000 miles, around 10,000 miles a year, and 2.75 previous keepers, so condition and service history deserve close attention. Quattro four-wheel drive adds reassuring grip in poor weather, and the 170-horsepower diesel suits motorway trips with useful economy. Comfortable SE equipment makes it appealing to commuters and families. Against rivals, the A4 is known for understated styling, long-distance comfort and extra traction; check service history, emissions equipment and running costs before you buy.