The Mercedes-Benz SLR Stirling Moss can accelerate to 62 mph in 3.5 sec. It's capable of 217 mph. So what, you say. Those numbers have become standard supercar fare. The Ferrari Enzo can touch 225 mph. The Corvette ZR1 barrels to 60 mph in 3.3 sec. Ah, but here's the twist -- this SLR does its thing without roof, windows, and windshield.