i had a late c4 ('95) vette and the crossfire handles slightly better. the short wheelbase and lighter weight give the crossfire more "tossability" in tight turns. on wide radius turns (like entering a freeway) the corvette had an edge because in addition to the grip you had the ability to accelerate faster. now if you compared the crossfire to a c5 or c6 vette, it probably wouldn't handle quite as well.

but i also bought the crossfire for its looks more than performance.