The AUDI A6 (2011-15) 5DR AVANT QUATTRO 3.0 TDI V6 DPF SS 245 EU5 SE STRON AUTO7 is a premium, large estate. Its Avant body offers useful space, while quattro drive and an automatic gearbox add confidence. In the UK, it sits above mainstream estates as a spacious executive alternative to an SUV. It suits families, commuters and long-distance drivers, with passenger room, holiday-luggage capacity and a comfortable feel on faster roads. The 3.0-litre diesel has strong passing power, making this A6 Avant a natural motorway companion. Its size and premium running costs, however, may be less appealing for frequent short urban journeys. Mycarcheck.com logs 612 checks across 215 VINs. Average private-sale value is £6,800; mileage averages 125,000 miles, with 8,000 annual miles and nearly three previous keepers. Against BMW 5 Series and Mercedes-Benz E-Class estates, this A6 combines understated style, all-weather confidence, space and performance. Check condition and history carefully before buying one.