It's problematic for Apple though. Cars aren't a high margin industry, but I can imagine them selling something that looks quite like a SMART car with an Apple logo, maybe for about £150,000. People will definitely pay.
It'll be interesting to see what bit of a car that we generally think of as indispensable Apple will courageously remove. I'm thinking maybe door handles, wipers, something like that.
Doubtless there will be patents involved too. Mind you, even the crazy rubber-stamping patent office of today surely won't award Apple a patent for a car with rounded wheels.