Tried search without luck. Looking at 65 GTO that has VIN starting 237. Have not seen any documentation yet and I'm not certain I'd know if it was authentic or what to look for. Would the entire VIN help? What do I look for? Is it easy to mistake a GTO for a Tempest excepting the engine and emblems, etc? I've googled and I've seen should be 242 VIN and I've seen can be 237 for Tempest or GTO. Thanks for any replies and help.