"We think we could get 1000bhp out of this engine, revving to 9500 or 10,000. You'd probably then be able to do 250-255mph, but it would be hard to meet the required emission standards, in order to be able to homologate such an engine." Gordon Murray about the Mclaren F1
"The 787B was reported to have a redline around 9000rpm. However, interviews with Mazda's 787B race engineers revealed that the power of the quad-rotor increased dramatically above 9000rpm. One engineer stated that the car could develop more than 930hp with a redline around 10500rpm. They also discovered that all aspects of the engine were still in excellent condition and could have run another 24-hour race" Wikipedia
