I had posted some pics of a Bugatti Veyron I saw at a dealership and I've just put up a video from the same day. It's mostly people checking it out but at the end they start it up and drive it inside for the night so you get to hear what it sounds like. If you like the Veyron and have 4 minutes to kill you can do it here
https://youtube.com/watch?v=Q87M264tMrQ