[w00kie]

It still takes one standard car's worth of space on the road and one standard car's worth of parking space. This is not a solution to anything.

[james_s_tayler]

So it's actually probably less efficient.

[dleslie]

I've seen it in person many times; it's definitely smaller than the hatchbacks parked on the street near to it.

More like a goldwing motorcycle in size.

[adrianN]

If it weighs a lot less it could help with energy consumption.