Ah yes, I've seen those. They have been around Europe for quite a few years.
They are actually pretty cute. AND you can take them out on the highway!
However, I would be a slight bit scared to do so. I like the illusion of safety that my big boat of a car provides me (2001 Monte Carlo - it's probably the widest and longest model of Monte Carlo ever
)
Small cars are actually easier to drive, though.... and I have a feeling that I would feel like I was perpetually at a fair or in a video game (seen the Wii commercials?
) while driving this.
I think I kind of like it!