Do you like Super Mario? I betcha you don't like it as much as these people do ... They even decorate their cars with Super Mario art:
More at The Straits Times' Stomp blog: Singapore Seen
Beep Beep Mario Car, spotted by Spanish blog ion litio in Madrid
And finally, not exactly a Mario Car, but an RC car playing Super Mario theme (yes, it was on Neatorama before, but I couldn't resist):
If you know of any more Mario-inspired cars, please let us know!