Very interesting stat on that car is the wheels. It is running 18's on the fronts and 19's on the rears.
SNAP! I think if i was to ever make a replica (GT90) that's what i would have done too. after all.. we are talking EDGE DESIGN now. But on the other hand, making the cougar go like Stig would be in consideration.
Have you seen this guy down under? http://www.gt40s.com/forum/gt40-build-logs/21349-gt90-ground-up-18.html he has got his hands on the original measurements and is well into building the chassis from ground up! Hope so much to see this project completed!