Japanese engineer Kuniako Saito has built a tiny, li-pol battery-powered personal transporter that he's calling "the world’s first car in a bag".
It's a kind of variation on the typical skateboard, and weighs in at around 3Kg (depending whether it's the indoor or outdoor version) and has a distance of about 12 kilometers on a three hour charge.
Okay, at first glance this looks a bit useless and more of a gimmick, but after I watched the video I had to admit -- I was pretty impressed! Particularly the bit where the guy with a trolley full of boxes coasts up a hill with such ease. The designer also mentioned that it'd be useful for people who are pushing a wheelchair, which is an interesting application.
Considering there are a lot more ramps everywhere these days, I actually think this could work. Looks like it'll be going to Kickstarter shortly, and I reckon it'll do well (price depending). Check it out, and give us your thoughts below! 
