The AUDI RS6 is a large, premium performance estate, best known in the UK as a fast, practical family car rather than an everyday hatchback or SUV. It combines generous luggage space and comfort with sports-car pace, putting it among the most desirable high-performance estates and a rival to cars such as the Mercedes-AMG E-Class Estate and BMW M5 Touring. mycarcheck.com has recorded 20,581 AUDI RS6 look-ups across 4,484 distinct VINs, giving a substantial snapshot of used-car interest. Checks show an average private-sale valuation of £54,700 and average recorded mileage of 53,000 miles. The cars average about 6,000 miles a year and 2.7 previous keepers, useful context when assessing an individual example; condition, history and specification can still make a big difference. The RS6 suits families or drivers wanting one car for daily duties and spirited trips, though running costs are higher than ordinary estates and fuel use is greater.