Kiai!
I have of course seen a good number of smart cars since they hit the road but only recently did I find myself riding next to one. I was coming home along Kingsway one sunny afternoon and there in the lane next to me rolled the tiny transport. Good heavens, it was the same length as my bike. I didn't have probable cause so I didn't test my theory, but I feel confident that I could have side-kicked the wee bugger right off the road.
If they ever make one with the power delivery of a sportbike then I will surely buy one.