The AUDI A6 (2004-09) 4DR SALOON 2.8 FSI S LINE is a spacious, premium four-door saloon for buyers wanting more comfort than a family hatchback. In the UK, it competes with the BMW 5 Series and Mercedes-Benz E-Class. S line styling adds a purposeful edge while keeping the A6 practical for everyday use. The 2.8-litre petrol engine suits relaxed motorway journeys and confident overtaking, rather than buyers prioritising low running costs. The roomy cabin and boot make this A6 a comfortable choice for couples, families and regular business commuters, while its size and premium feel are less suited to new drivers seeking an inexpensive city car. mycarcheck.com has four checks and two VINs, so figures are indicative only: average private-sale valuation £1,900, mileage 106,000 and annual use 6,000 miles. Checks show 4.25 previous keepers on average. It offers executive-car refinement, but check its history and running costs carefully before buying first.