I was told about the car on another site via PM and got in contact with the owner who sent me the details, just trying to do my homework before I go any further. I'm definitely a novice when iit comes to RST's, and when ii googled it I pretty much got nothing apart from Janspeed Xr3 kits like you said. I think iit needs set up too, so that's another reason I'd like too figure out what exactly I'm dealing with.
Googled the registration too, and nothing came back either.