While at Daryl Adams' house after the Road America love-in, I noticed that his LHD SPF Mk 1 also had the windshield wiper on the 'wrong' side; that is, the drive mechanism was on the same side as the steering wheel (offset to the side of the NACA duct).
I then looked at some photos, and it appears to me that the RHD SPF cars have the wiper mechanism on the correct side (same side as the steering wheel), meaning that SPF either has two molds for the nose, or molds the RHD and LHD wiper cutouts individually on each nose they make?
We know the RHD and LHD chassis are mirror images of one another, at least with respect to the center spine, which is offset to the right on the LHD cars and to the left on the RHD cars.
What other RHD vs LHD differences exist? Inquiring minds want to know...