The AUDI A6 (2004-09) 5DR AVANT 4.2 V8 QUATTRO SE TIP AUTO is a large, premium five-door estate, offering more space and comfort than an ordinary family car. In the UK used market, it sits among executive estates such as the BMW 5 Series Touring and Mercedes-Benz E-Class, with Audi’s understated style and all-weather grip. Mycarcheck.com records 25 checks covering nine distinct VINs, so the sample is modest rather than a broad market survey. Its average private-sale valuation is £1,700, with an average recorded mileage of 125,000 miles and annual use of 5,000 miles. Cars have averaged 3.44 previous keepers, useful context when assessing an individual car’s history. The V8 delivers smooth, strong performance, while quattro all-wheel drive adds confidence in poor weather. Its roomy Avant body suits families and touring, but high fuel and repair costs make it better for buyers prioritising comfort, pace and character over economy. Check history carefully.