a friend of mine was saying how z's suck and supra's are so much better cause they can be upgraded much easier. he even went as far as to say that there are no z's that are modified enough to keep up with the most modified supra. before i tell my friend about these two z's, the greddy and the JUN, are they faster than the most modified supra? if not are they pretty damn close to it? did the z's set any kind of record? thanks again, i hope the z's came out on top