I tried, and couldn't find any more info on these things, but they look cool.
They're called X-Motors, they're by Silverlit, the company that makes the PicooZ RC helicopter. They have buses, trucks, vans, semis, even a golf carts. They have three different controllers, two Digital Proportional speed ones, and the simple non-proportional one. Anyone know anything about these?
Main site:
http://www.silverlit.com/main.shtml#