Fair enough.

Yeah, you're right. We shouldn't make them look like space ships. After all they need reasonable designs for a good drag coefficient.
But what I want to say is that we shouldn't make a strict design principle, otherwise we'd have a future F1 race. Hope you know what I mean I am just thinking of something a little more unique than the classic "two arms" or "spire nose" shape [Assegai / Feisar designs].