philpjuk100 said:Colin Chapman, ... had no qualifications in their final discipline
I understand, and totally agree with your point, however Colin Chapman did have a degree in Structural (Civil?) Engineering as far as I'm aware, which seems like a very good start for designing strong, stiff, lightweight structures such as sports and racing cars.
Even if his degree may not have been the traditional one people may expect for cars, it was probably very relevant to the actual work.