Bill, thanks for the comments on the JCF. Walt is a stickler for detail and it shows in every aspect of the car, as in the GT40 I bought from Cal Metal. I can't build 'em worth a damn, but I sure can buy 'em!
As far as Brock's design abilities, take a look at the underbody modifications Ford deemed necessary to negate lift issues on the new GT: The car has splitters and other devices installed to try and cure the aero faults Ford found when they started testing original GT40s. The Brock Coupe, on the other hand, is aerodynamically similar to the original Daytona, designed almost 40 years ago, yet by the accounts I've read is stable and reassuring even at very high speeds. It's a credit to the hand of a very talented designer, who finalized the shape without the benefit of wind tunnels or computers, using nothing more sophisticated than tufts of yarn taped to the bodywork--