[Tom Kirkham]

My understanding is that the first two cars had aluminum hardtops and the rest of the cars were fiberglass.

I have been told that the LeMans ops are good for a half second at Goodwood. Due to poor vision out of the car and how hard it is to get in and out of a car with a LeMans hardtop, I suspect that if the tops were worthless no one would run them, and there sure seams to be a lot of them...