During the scene with Wesley Snipes driving to the airport, he is clearly driving a C3 Corvette (spotted by the round taillights and only two (2) "air-vents" in front of the doors).
When he arrives at the airport, he is clearly driving a C4 Corvette (spotted by the more rectangular taillights as well as four (4) "air-vents" in front of the doors).
Pretty big mess up if you ask me