The AUDI A4 (2001-05) 5DR AVANT 2.5 TDI 155 SPORT MTRON AUTO is a premium mid-size estate, with family-friendly luggage space and no SUV bulk. Sport trim adds smart appeal, and the automatic gearbox makes daily journeys easy. It was an executive-class rival to the BMW 3 Series Touring and Mercedes C-Class estate. mycarcheck.com has only two look-ups, covering two distinct cars, so its figures are a small snapshot rather than a market-wide guide. Those checks show an average recorded mileage of 198,000 miles, around 8,000 miles a year, and 6.5 previous keepers. The average private-sale valuation recorded was £200; treat this as an observed historic figure, not a guaranteed price or current appraisal. With its strong diesel character and roomy load area, this A4 Avant suits families, commuters and motorway travellers who value comfort over a newer-car feel. Check its history and condition carefully, especially at this age and mileage.