They said there is a compressor to re-pressurize the tanks while driving. It made it sound like a power-up in a video game. You can't use it all the time, but if you wait for it to charge up, use it as many times as you want.
I think the bigger issue with be making it street legal. Kickflipping over traffic, and refusing visibility for everyone to 0 in the process, can't be good.
For closed courses, movies, etc it's really cool.