Dodge Challenger SRT Hellcat and Chevy Corvette Stingray
according to the rumors i've heard, when SRT was developing/testing the hellcat motor, they actually got 850hp at one point. it was detuned so that it would meet emissions :D
here's one someone just picked up today. he made special arrangements to get it right as they unloaded it from the rail car. he didnt want anyone else test driving it lol.