I spotted this gorgeous RS6 yesterday arvo (one of the world's quickestsports sedans) in Huntingwood. That's a twin-turbo V8 - 331kW, or so I thought. The owner claimed that he had a special edition RS6 (only 125made) with power in excess of 400kW. This would propel it to 100km/hr inunder 4 seconds. And no, he wouldn't let me drive it.
JT
http://img236.imageshack.us/img236/7338/rs610pv.jpghttp://img62.imageshack.us/img62/5513/rs637bd.jpg