[KevinM]

The first issue you run into is that the original 6 cars were not the same. The Italian made bodies had the roof shape changed due to a mistake when they were being made.

That said, the Factory Five is not particularly close. They started with an existing windshield which forced the roof to be different. The wheelbase is also 5" longer than the original cars were.

I am not sufficiently familiar with the others to comment.

Kevin