Fair play to you chris!
Someone should post that clip up every day!
I have a shortcut to it on my desktop,
I showed the wife recantly and she wouldn't belaive it was real, she though it was CGI or something like that!
Dan
afaik the engine is a certain power on its own, but then there would be a different amount a power down at the wheels after all the ins and outs of getting there, to put it in a way that i think anyway!!