Like a nude beach for automobiles, the Georgia National Fairgrounds becomes the place to be for vintage cars with their engines on full display. At the Perry Auto Fest & Swap Meet, visitors stick their heads under popped hoods, admiring the pristine innards and gleaming chrome of hot rods, sedans, and tractors. Elsewhere, they peruse folding a maze of folding tables, each stocked with car parts, apparel, collectible toys, and shifter knobs shaped like famous people's eyeballs.