The rules for the for the series changed rather dramatically at the end of the last season banning fully enclosed cars and I managed to get the bodywork form an old project I headed up back in 2002.
Anyway as well as a video I have an aerodynamics question as well, should I see continue putting the car on the diet i have been recently and lose potentially up to about 500g OR would i be better off updating the aero by fairing in the roll bar like this...

or leave it how it is...

and heres the video..
http://www.youtube.com/watch?v=pcqyfI0JH7o