The Pagani Huayra BC made its official debut earlier this year, but hear its new unique engine growl and watch it spit blue flames from its quad exhaust.

Pumping out 838 horsepower and 553 pound-feet of torque with a heady 9000 rpm redline, Pagani's V12 R engine only weighs 436 pounds (198 kg) and requires servicing every 6,200 miles (10,000 km ...