From AUTOCAR

The BUGATTI VEYRON develops a minimum of 1001ps ( 987bhp ) but under ideal conditions it can run 1085 bhp (1100ps)

max power @ 6000rpm running 18psi.

apprently if you gave a McLaren F1 a headstart of 10 seconds the BUGATTI would beat it to 200mph!

when you take into account the McL F1 after 10 seconds is doing 135mph that`s pretty damned impressive!