With just 600 HP and proper tuning , and higher final gear ratio one can easily reach 300 KM/h.
With 800Hp with nitrous oxide injection , proper tuning , weight reduction , it easily 400+ km/H
To all PW members , first think , dont just say how can a R35 beat a Veyron.
That R35 was build and tuned for one purpose only to beat the Veyron.
Its all about tuning , i can bet, that R35 can even beat a Formula 1 in straight line speed (F1 that is tunned for Monaco Circuit )
Have a nice day .