1964 Huh?
 

Howdy! I have a 1964 corvette that was built in late 64. Something confuses me though, my 64 has 6 hole sill plates, side exhaust and a power antenna all which to the best of my knowledge didn't come out till 65??
I know these things could have been added but close inspection seems to say other wise.
My question is, does anyone know if it's possible that because my car was built late 64 that these options could possibly be original?
Thank you. Phil.