Interesting article on the McLaren MP4-12C on the dyno and with power curves.
http://www.edmunds.com/car-reviews/t...no-tested.html
As can be seen on that engine, it's possible to combine high end power, high rev limit and turbocharging.
Interesting overlay of power curves for the McLaren, Porsche 911 GT2 RS and Lexus LFA:
