Ok thanks for the info.
I was just telling my mom about the BCG's and she was like - "when are you going to grow up?".

I'm sick of people thinking RC cars are for little kids

. It's like because they see the Tyco and Nikko adverts on TV they think ALL RC cars are for little kids, which isn't true. They just don't have a clue, and it gets on my nerves.
I just found a surface that would work well. It is underlay for laminated flooring, looks like it would be great to use. I have some in my house but I don't think I'm allowed to have it.