First year of the pointy tail pointy nose Stingray was 63 and IIRC, 4 round tail lights for carby motors, and 6 for Rochester fi, and exhaust exited thru round chrome bezels in the valance below the bumper. 64-67 basically the same but with minor gill differences, and somewhere in there was the side exhaust. 62 had the 63 tail and the 61 headlights and same exhaust (not side). I think the thru the bumper exhaust was maybe 57-61. My favorite is the first 4headlight late 50's with the round butt in RED with a white scallop down the side with the fi flags and a WonderBar vertical radio. Second is a 427 67 roadster.