The AUDI A6 (2004-09) 5DR AVANT 2.7 TDI TDV SE is a large premium estate sold in the UK as an executive alternative to mainstream family cars. Avant styling combines a roomy cabin with useful luggage space for passengers and everyday loads. Understated, it suits drivers wanting comfort and practicality. Mycarcheck.com recorded 211 look-ups covering 112 distinct VINs, giving a useful sample of cars checked. The average private-sale valuation was £1,200, while recorded mileage averaged 185,000 miles and annual use 8,000 miles. Cars had about four previous keepers on average, so check each car’s history, condition and maintenance carefully. The 2.7-litre diesel suits longer commutes, motorway journeys and family trips, with relaxed, strong pulling power and economy for its size. Against estates such as the BMW 5 Series Touring and Mercedes-Benz E-Class, the A6 is a comfortable, capable choice; its age and high mileages make a thorough inspection especially important.