Wasn't fixed at all, a car with 500bhp/ton is very mediocre for that power board, with there being lots of cars far higher than that.
Still made the Zonda look like it was going backwards in the straight line drag despite having a 'mediocre' 500bhp/ton.....
I agree though I never expected the Veyron to be the fastest around the track. To me its more of a compromise between eltimate power (as proven by the drag race) and a car you can actually drive normally / comfortably.