The AUDI A6 (2014-19) 5DR AVANT QUATTRO 3.0 TDI V6 DPFR SS 218 EU6 S LINE STRON AUTO7 is a premium large estate, offering the comfort and presence of an executive car with useful luggage space. In the UK, it sits alongside the BMW 5 Series Touring and Mercedes-Benz E-Class Estate. mycarcheck.com recorded 110 look-ups covering 35 distinct cars, giving a useful snapshot rather than a complete market picture. Across those checks, average private-sale value was £15,800, average recorded mileage 65,000, and typical annual mileage 16,000. Cars had around 1.6 previous keepers on average, suggesting many examples have had relatively few owners. With its V6 diesel, automatic gearbox and quattro four-wheel drive, the A6 Avant suits family holidays, long-distance commuting and drivers wanting all-weather confidence. S line styling adds a sportier look, while the spacious cabin and ride make it a practical alternative to an SUV. Check each car’s history before buying.