British sports cars in the sixties for safety reasons had to remove toggle switches. The problem was that during crashes people were losing eyes or suffering puncture wounds. This was the story handed down to me by my uncle.
This is second hand account but here are my uncle's credentials...
I think the toggle switch ban can be lumped in with the bumper requirement on imports. Maybe with the rubber bumpers on MG’s. I think these imports requirements started in the 70’s.
CamperBob2|20 days ago
detourdog|20 days ago