Gumpert Apollo supercar .. Audi twin-turbo V-8 engine with 650 horsepower and costs $550,000.

Drivers sit in a Gumpert Apollo supercar before driving on the track at Monticello Motor Club in Monticello, New York, U.S., on Sunday, July 11, 2010. The Apollo base model features an Audi twin-turbo V-8 engine with 650 horsepower and costs $550,000.

Reporter Jason Harper sits behind the wheel of a Gumpert Apollo supercar before driving on the track at Monticello Motor Club in Monticello, New York, U.S., on Sunday, July 11, 2010. The Apollo base model features an Audi twin-turbo V-8 engine with 650 horsepower and costs $550,000.

A Gumpert Apollo supercar is photographed on the track at Monticello Motor Club in Monticello, New York, U.S., on Sunday, July 11, 2010. The Apollo base model features an Audi twin-turbo V-8 engine with 650 horsepower and costs $550,000.

"Gumpert Apollo" Supercars Exposed