The AUDI A4 (2005-08) 4DR SALOON 2.0 TDI 170 QUATTRO SE is a diesel, four-door executive saloon: a smart, practical alternative to a family hatchback, aimed at buyers wanting extra comfort and a more upmarket feel. In the UK used-car market, it sits among established rivals such as the BMW 3 Series and Mercedes-Benz C-Class. Mycarcheck.com has recorded 117 look-ups covering 45 distinct VINs, a useful but modest snapshot rather than a complete picture of every car. Across those checks, the average private-sale valuation was £1,300, average recorded mileage was 147,000, and typical annual mileage was 7,000. The cars averaged about five previous keepers, so checking each vehicle’s history and condition is especially worthwhile. Quattro four-wheel drive helps on wet roads, and the diesel provides relaxed motorway pace. It suits commuters and small families wanting a comfortable long-distance car, but age, mileage and maintenance deserve careful checks before you buy.