The AUDI A4 (2001-05) 5DR AVANT 1.9 TDI 100 SE is a mid-size premium estate, offering generous load space and easier parking than a large family car. In the UK used-car market, it appeals to buyers wanting practical transport with an upmarket feel compared with mainstream estates, for everyday use. Its 1.9-litre diesel is known for frugal long-distance running, making this Audi A4 Avant well suited to commuters, couples and families needing room for luggage, pets or weekly shopping. Mycarcheck.com has recorded 126 look-ups covering 92 distinct VINs, a useful sample. Checked cars averaged 193,000 miles, about 9,000 miles a year, and nearly five previous keepers. That mileage reflects the age and high-mileage use, so condition and service history matter. The average private-sale valuation was £300, unusually low and not a current price guide. Compared with Mondeo or Passat estates, the A4 stands out for its refined cabin and premium image.