Oke, stupid question, and mostly just wondering this. Sorry for my sick mind.
Could a driver gain an advantage by amputating his legs on purpose? The team could perhaps make a radically different car with the space that becomes available. Shorter perhaps. Throttle and braking would be done with hands, or, with neuroscience becoming better, with the mind.
Isnt there a disproportionate amount of your weight in your head, so if you really want to save weight and lower CoG, you just need a driver who doesnt have a head.
Of course, that may make driving difficult though some seem to make a career out of driving with an empty one.