renting a car

HI -
im trying to find a way to rent a car for my FH to be at the reception for when we leave and to have just for a day or 2. I am trying to find a '76 or '82 mustang or corvette. Does anyone have any idea for me on who i can contact. I called a few limo companies but they didnt have any info for me. I was hoping that a vendor might have a connection or idea for me. Thanks for any info!