Not that hard to believe, I have seen videos where guys mod the hell out of a Toyota Supra to 1000+hps and they smoke just about everything out there. If I modded out a Ford Fiesta to 700hp, I could beat a ford GT too.....(not really, but you get the picture). The camaro was impressive to say the least, but let the guy in the GT mod his engine and let the race begin. Think it would be a different story entirely.