The AUDI A4 (2001-05) 4DR SALOON 1.9 TDI 100 is a compact executive saloon: a premium-feeling four-door family car rather than a hatchback or city car. In the UK used-car market, it sits among established alternatives such as the BMW 3 Series and Mercedes-Benz C-Class, offering a more restrained, practical approach. Mycarcheck.com checks recorded 46 look-ups across 36 distinct VINs, a useful snapshot rather than a measure of every car. The average private-sale valuation was £200, while the average recorded mileage was 174,000 miles; average annual use was 6,000 miles, and cars had about 3.3 previous keepers. These figures suggest examples may be older, high-mileage purchases, so check each car’s history and condition carefully. The 1.9 TDI diesel suits regular commuters and families seeking a comfortable, economical car for longer journeys. Its understated styling, roomy cabin and saloon shape make it a practical alternative to sportier rivals, provided upkeep checks out.