The Huayra was already a speedy beast of a machine. The Pagani Huayra BC is just speedier. With the BC, the company has managed to massage 789 hp from the twin-turbo 6.0L V12 engine, and paired it with a brand-new seven-speed automatic that cuts shift times in half while also weighing less. Indeed, lighter weight was also a goal for the car, as it's nearly 300 lbs. lighter than the "standard" model, thanks to upgrades like a new titanium exhaust system, lighter Brembo brakes, custom forged wheels, and a revised, more aerodynamic body made from an all-new composite material that's 50 percent lighter yet 20 percent stronger than carbon fiber.