For me it would be a:
65 Hemi Coronet with 4 spd,
mid 80's Shelby Omni GLHS, (had one and want it back, after I modified it, it was a rocket ship on rails!!!!!)
68 440 Dart, (had a 69 that was never finished and would like another)
60's Convertable XKE jag. (best looking convertable I've ever laid eyes on!!!)
65 GTO to go with the 04 GTO we already have.