The AUDI A6 (1997-04) 5DR AVANT 1.9 TDI 130 SPORT 6SPD is a large five-door estate, known as the Avant, aimed at buyers wanting executive-car comfort with useful luggage space. In the UK used-car market, it sits above ordinary family estates, offering a more premium feel than many mainstream rivals. Mycarcheck.com has recorded 179 look-ups across 88 distinct vehicles, giving a useful snapshot of this older A6. The average private-sale valuation is £1,100, while recorded cars average 179,000 miles and around 8,000 miles a year. Owners have averaged just over four previous keepers, so condition and service history matter greatly when viewing one. With its roomy boot, the A6 Avant suits families and commuters seeking comfort and sensible diesel economy. Sport trim and the six-speed manual add an engaging feel. It rivals BMW 5 Series Touring and Mercedes E-Class estates, but age makes history and condition crucial, especially important to check.