Cute, but the prefix notation in LISP is not purely aesthetic; it is related to the fact that lists were stored in a first-rest (car-cdr) pair structure, and thus function calls (a list including the function itself and all its arguments) could be broken into the function and its list of arguments, using mechanisms already present.

I suppose you could then define car-cdr as a last-rest pair, but there are reasons aside from linguistic ones to want the first of a list to be the prominent one.