Watch as Hennessey’s 645 horsepower HPE700 Camaro runs the dyno. Powered by the ZR1’s supercharged LS9 powerplant, this ultimate Camaro will only be produced in limited quantities.

Footage courtesy of Hennessey Performance Engineering

Take a look behind the scenes with Jay Leno and pro race driver Justin Bell as they preview the Green Car Challenge debuting on The Jay Leno Show

Ride along for a hot lap at Laguna Seca in Jaguar’s supercharged cat, the XFR, as part of Motor Trend’s 2009 Best Driver’s Car competition. For the full story, check out the October issue of Motor Trend magazine.

Ride along for a hot lap at Laguna Seca in Nissan’s track-ready Nismo 370Z as part of Motor Trend’s 2009 Best Driver’s Car competition. For the full story, check out the October issue of Motor Trend magazine.