The Veyron is ridiculously fast (0-60mph 2.5seconds, 0-125mph 7.3, 0-250mph 55) but I have no idea about handling as it weight is something like 2 tonnes. I doubt its going to be near as good as much lighter cars, but I wouldn't be surprised to see it turn faster laps than an M3.
here's a video of some track footage
http://www.dpccars.com/car-videos/07-25-07page-Bugatti-Veyron-at-Nurburgring.htm
It looks pretty decent ... however, it is really funny though that at one point, there's another car (didn't stop to look what it was exactly) that overtakes it really, really fast ...