The AUDI A6 (1997-04) is a large, premium family car, sold in the UK mainly as a four-door saloon and practical Avant estate. It sits in the executive-car class, offering more space and comfort than a typical family hatchback, and traditionally competed with the BMW 5 Series and Mercedes-Benz E-Class. Mycarcheck.com recorded 5,602 look-ups covering 2,290 different VINs, a substantial sample of interest in this older Audi. Checks show an average recorded mileage of 141,000 miles and around 5,000 miles driven yearly; the average private-sale valuation was £2,600. These are historical indicators, not a price guide for any individual car. The AUDI A6 (1997-04) suits families and commuters wanting a relaxed long-distance car, with a roomy cabin, comfortable ride and useful estate option. It feels more substantial than mainstream alternatives, but age and upkeep matter: check service history and condition, as many examples have high recorded mileage and several previous keepers.