The main problem of this car is that. Bugatti built the original concept, then trotted out all the figures about 250mph etc etc.
So when the engineers got round to actually making it all work it was much harder than Bugatti's top chiefs gave them credit for!
Its good that they managed to make it look so much like the original concept/

Concept

Production.
Compare that to the McLaren SLR concept
vs
Despite all that engineering, its still not the best Supercar ever. That's still the McLaren F1. Of every Supercar of the last 10 years the Veyron still falls way behind the Carrera GT and Enzo in terms of being a decent proposition.