Wow that's a big statement, how could you possibly know what else is flying in other corners of the globe.Dear Barry: Yamaha RULES, Rotax drools. That's all I'm gonna say. Read 'em and weap, buddy, my gyrocopters will out-climb ANY gyro in the sky, anywhere in the world today. Period. End of story. Luv ya, bruh. Oh, and Ferarri? Fuggeddaboudtit. I have one word for you: PORSCHE! (especially blue ones)
Greg has left the building.
I know in oz alone there are several non standard turbo rotax's on very light single seaters that would be more than up to your challenge.