Our cars are not limited by the displacement but we are at a wall as everybody tops out in the 350-360whp range and this is due to the supercharger design/displacement/efficiency. Just look at a SL600 vs SL55 AMG, SL600 will own it stock for stock and once modded.. no contest. Same goes for other cars with a charger like an 03-04' Cobra can only make so much whp (which is obviously a **** load nevertheless) but once you put a Whipple on it.. here come 130+ mph trap speeds.