I can't think of a current American car that I would want in kit form that isn't already available. Going back a few decades, the Allante, XLR, 1995-1999 Riviera, the glass roof Mustang, and the 2000-2007 Monte Carlo would be my choices. Of these, only the Monte Carlo could be made in multiple variations (regular SS, Pace Car, Dale Earnhardt and other special editions). I don't pay close attention to cars from Europe and Japan.