The AUDI A6 (2004-09) is a large, premium family car, sold as a saloon or practical estate rather than a hatchback or SUV. It sits above mainstream family cars in the UK market, appealing to drivers wanting comfort, space and a more upmarket feel for everyday journeys and longer trips. mycarcheck.com has recorded 23,782 look-ups covering 9,990 different VINs, giving a substantial snapshot of used A6 interest. Checks show an average recorded mileage of 153,000 and around five previous keepers, while the average private-sale valuation is £1,400. These figures describe the cars checked, not every example, so condition matters greatly. The A6 suits families, business drivers and commuters seeking a roomy cabin and composed ride; the estate is useful for luggage and hobbies. It feels more refined than mainstream alternatives and rivals executive cars such as the BMW 5 Series and Mercedes-Benz E-Class. Check running costs and age-related upkeep carefully.