All right, I guess I'll be the one to red neck it up a little bit. I think the XKE is probably the cream of the crop. But, I prefer American iron. Some of my choices.
The 1979 Pontiac Trans Am. I preferred the '79 over the other years because of the rear 3/4 view. Loved the tail lamps and bumper treatment with the flares and spoiler. And the Screamin' Chicken is always bitchin'.
The 1963/67 Corvette Stingray. Yeah, I know it's been mentioned already but always been a fave since I was little. The front view, the arc of the doors, the fastback roofline, all so far advanced from anything else at the time. It was the first car that just looked like it could fly to me.
The 1966 Ford Mustang Fastback. Whether in base, GT, or Shelby trim it's just a damn pretty little car.
1968 Chevrolet Camaro. I am aware that the '69 has always been the most popular of the first design but I preferred the look of the '67/68 better. It wasn't but the car looked smaller, more streamlined. With stripes or not, with the RS package or exposed headlamps I always though it had very clean lines.