Today, someone with a decent stash of cash seeking to buy a high performance sports or musclecar has a sizeable selection to choose from. Those wishing to confine their choices to U.S. shores can consider Vipers, Camaros, Mustangs, Firebirds, Corvettes, and a host of other vehicles. Then, of course, there’s the foreign machinery — Porsches, BMWs, and so on.