Entirely too much money!

Looks like a more stable monowheel.

https://en.wikipedia.org/wiki/Monowheel

So we solve the problems of the monowheel by adding two more wheels. lol.

But it looks awesome. Looks like they need to figure out weight distribution a bit better, perhaps, but yeah, looks fun. :)

What even are those emoji about?

And it's not even possible for me to find that website. (not that I wanted to give it a view, just curious if I could decode it.)