Originally Posted by
Mirek
Yes, You are wrong. There is no limit of 300 Hp because it's not possible to control. There are other limiting features, mainly air restrictor and maximum boost limit but those don't set any line at 300 Hp. They just give conditions for the manufacturers to cope with.
The real power is mostly secret but it's more than 300 Hp for all latest R5 cars and a lot more for WRC cars. I believe even latest S2000 cars reached 300 Hp but with a lot less torque.
In case of WRC cars I know for sure only the power of really old cars but even Fabia WRC ten years a go had 340 Hp.