The AUDI A4 (2005-08) 2DR CABRIOLET 2.0 TDI 140 S LINE MTRON AUTO is a four-seat, two-door premium convertible, rather than a family hatchback or SUV. It combines open-top motoring with a diesel engine and automatic gearbox, placing it among comfortable, more upmarket used cars in the UK market. mycarcheck.com has recorded 766 checks across 197 different VINs, a useful sample of interest in this model. Its average private-sale valuation is £2,100, while average recorded mileage is 108,000 miles and average annual mileage is 4,000. Checks show around five previous keepers on average, so review each car’s history carefully. Best for couples, commuters and drivers, it offers occasional-passenger practicality with open-air appeal. S line styling adds a sportier edge, while the automatic suits relaxed cruising. Compared with BMW 3 Series and Mercedes CLK convertibles, the A4 is a discreet, comfortable choice; at this age, condition and service history deserve close attention.