I personally love the art deco styling of the late '30s. The '37-'38 Ford, '37-'39 Chevy, and all of the other manufacturers were losing the boxy and fat appearance. The coupes and "flatback" styles were very sleek looking, for their time.

My next choice might be the '48-'52 GM Fleetlines and Torpedobacks. The Buicks would be especially nice, since they are less common, and have those gorgeous grills.