The AUDI A4 (2005-08) 5DR AVANT 2.5 TDI 163 SE is a five-door estate, or Avant, in the UK’s compact executive family-car market. It offers more luggage room than a saloon, with a premium feel, and suits families, commuters and anyone carrying shopping or holiday bags. Its 163-horsepower diesel and comfortable ride make it well suited to longer trips. SE specification offers a useful comfort-and-equipment balance. Compared with the BMW 3 Series Touring and Mercedes-Benz C-Class estate, the Audi is known for its understated cabin and refined feel. On an older example, condition and service history matter more than the badge. Mycarcheck.com data covers 11 look-ups and nine VINs, a modest sample. It indicates an average private-sale valuation of £900, recorded mileage of 160,000 miles, annual mileage of 8,000 and around 4.4 previous keepers. Treat these as guide figures; check the individual car’s history, mileage and maintenance carefully before purchase.