The AUDI A6 (2008-11) 5DR AVANT 2.0 TDI CR DPF EU5 170 is a premium five-door estate, or Avant, offering executive-car comfort and generous luggage space. It belongs to the family-car class, not the SUV or city-car market, and suits families or drivers needing room for work, holidays and longer journeys. Mycarcheck.com recorded 16 look-ups covering six distinct VINs, so this is a modest sample, not a broad reliability measure. Checks show an average private-sale value of £3,300, average recorded mileage of 132,000 miles and typical annual mileage of 6,000 miles. Cars averaged just over two previous keepers (2.19). It offers a more understated alternative to a BMW 5 Series Touring or Mercedes-Benz E-Class estate, with a refined cabin and a flexible diesel engine suited to motorway miles. The A6 Avant is a practical used-car choice, but at this age and mileage, check service history, condition and running costs before buying.