Weird looking wheelchair?

Question

Okay I was watching a commercial the other day about wheelchairs, and there was this one wheelchair that was like 4 sets of wheels stacked up on each other then a seat. It like auto balances and stuff, what is this wheelchair called?!?!?

Answer 1

That sounds like the one Johnson and Johnson tested, designed by the guy who made the Segueway, Dean Karmon. It can climb stairs, etc. perfectly!

Answer 2

Used for speed racing, I believe it name as Speedo.