Hennessey Performance are at it again and as always there is never enough horsepower in the standard car. The Chevrolet Camaro Z/28 comes standard with 500 hp from a massive 7.0litre V8 engine but Hennessey feel that the car is just not packing enough of a punch. They have managed to squeeze an additional 130 horses bringing the new output figure to 636 hp. In the video below, John Hennessey gives us a taste of this brute.
