The AUDI A6 (1997-04) 5DR AVANT 2.5 TDI SE 163 MTRON AUTO is a large, premium five-door estate, known in Audi’s range as the Avant. It sits above mainstream family cars in the UK market, offering extra space and a more upmarket feel than ordinary estate cars. Its diesel engine and automatic gearbox suit longer journeys particularly well. mycarcheck.com has recorded 113 look-ups covering 34 different VINs, giving a snapshot of cars checked. Those records show an average private-sale valuation of £1,300 and average recorded mileage of 174,000 miles; typical annual mileage is 14,000. The cars averaged nearly five previous keepers, so condition and service history matter greatly when viewing one. It suits families, commuters and drivers needing luggage room, with a feel that sets it apart from estates. Against BMW 5 Series Touring and Mercedes-Benz E-Class rivals, A6 Avant is an alternative; buy on condition, not badge alone.