Audi S8 D3 V10 (2007-2009)

Launched 2006 in Europe and 2007 in the US, the D3 S8 used a 5.2-litre FSI V10 derived from the Lamborghini Gallardo (and shared with the C6 S6) — but tuned to a higher 450 hp at 7,000 rpm and 398 lb-ft at 3,500 rpm. Six-speed Tiptronic automatic, quattro AWD with Torsen centre differential. 0-60 in 4.9 seconds, electronically limited to 155 mph. The D3 came in only one body — sedan — with an aluminium space frame chassis (Audi's lightweight ASF construction). Standard equipment was full-luxury: Bang & Olufsen audio, ventilated/heated/cooled massage seats, adaptive air suspension, MMI navigation. The D3 is the only full-size luxury sedan ever produced with a V10 from a mainstream brand. Production was small (a few thousand US units across the run); clean examples are appreciating.