Limited to just 40-units worldwide and priced at a whopping $3.5-million, the Pagani Huayra Roadster BC is sure to sell out quick. Why? For starters, this 2,685-pound hypercar is powered by a twin-turbocharged 6.0L AMG V12 generating 791 horsepower and 774 pound-feet of torque, mated to a seven-speed Xtrac sequential gearbox with a lightweight single clutch, which by the way, is 35-percent lighter than the traditional dual-clutch setup.