i might be being biased a little bit, but the enzo would be faster than the base f1. and the thread starter even stated to take the enzo against the base f1, so the winner would be the enzo. to get cornering statistics:
enzo-->slalom-73 mph skidpad-->1.05g
f1-->slalom-64.5 mph skidpad-->.86g
so by those numbers, the enzo would be THEORETICALLY faster on the track being it has faster acceleration and cornering abilities.
*EDIT* a z32 n/a would probably cost about 6,000-10,000 for a good one and a z32 tt would probably cost about 10,000-15,000 for a good one.