In the industrial world, visual ques have proven them to eliminate errors. Whether your flying a 747 or a GT40, a mistake can be bad news. I cannot imagine owning a car with a bunch of unmarked switches. Unless you going for originality...... but I could swear I have seen lots of pictures of GT40s with labels added......The mental picture and the mystery dash are interesting responses. I'm a retired aerospace guy and at one time was responsible for procuring almost the entire fight deck of the original 747's. Spent way too much time with engineers to think that a mystery dash is a good idea. Lots of studies showed that properly labeled instruments and switches make all the difference.
Several of your suggestions are interesting, such as using a pin stripper. I appreciate your inputs.
...besides you should have your eyes on the road, not 'inside' to read labels. The few knob and switches in a GT-40 that are available within an arms reach should be located in logical groups so they're intuitive. Also, as mentioned earlier, anything you can do to delay or discourage a thief from running off with your car....If the GT40 dash looked like a 747 dash then I would agree entirely