British Menace, there is an indoor track that runs nitro offroad near Waterloo Ia.
http://www.extremerconline.com/ They are also a Go dealer, awesome place!
I ran my 3 port for the first time this weekend and it ran awesome, it has a very smooth power band, easy to drive fast. My son ran a 7 port and it ran very well for only running it 225 deg.
Rex