The AUDI A4 (2005-08) S4 2DR CABRIOLET 4.2 QUATTRO 344 is a premium, four-seat convertible, blending everyday A4 comfort with S4 performance. In the UK it sits in a niche: a larger, more powerful alternative to ordinary drop-tops, aimed at drivers wanting open-air motoring with year-round all-wheel-drive reassurance. Its 4.2-litre V8 and quattro four-wheel drive give the S4 a distinctive, powerful character, while the folding roof makes it suited to weekend trips and sunny-day cruising. It is best for enthusiasts or couples who value performance and style over low running costs or maximum rear-seat and luggage space. Compared with BMW 3 Series and Mercedes CLK convertibles, it stands out for its muscular engine and confident traction. mycarcheck.com records 180 look-ups covering 50 cars; average figures are £6,700, 99,000 miles and about 4.6 previous keepers. The low 5,000-mile annual average suggests occasional use, so check service history and condition carefully.