Brushless Mobility Scooter

[Nick]

So I've been having great fun on a disabled/OAP Mobility Scooter today.

They are electric, limited to 8mph for UK law. It's powered by 2x 12v batteries in series, the motor I'm unsure of.

I'm looking for a cheap brushless setup to feed this beast on either acid or lithium batteries, anything 20mph+ would be fantastic.

Any ideas where to start? It would need to have some power to carry an driver, as well as move the scooter its self.

Don't really want to spend much, as it's just to mess about with.