The AUDI A6 (1997-04) 5DR AVANT 1.8T is a five-door estate, giving this executive-sized Audi room for passengers and luggage while remaining easier to park than a large SUV. In the UK used-car market it sits among practical, premium family estates, appealing to buyers who want space and comfort without choosing a newer, more expensive model. Its 1.8-litre turbo petrol engine gives the A6 Avant useful flexibility for commuting, motorway trips and family holidays. The roomy boot and composed, comfortable character are key attractions, while its understated styling feels less showy than some rivals. It is best suited to households needing one versatile car, rather than a small city runabout. In six mycarcheck.com checks across four VINs, average value was £500, mileage 175,000, annual use 3,000 miles and previous keepers about three; this small sample is a snapshot, not a market-wide guide. It also rivals BMW and Mercedes estate cars.