Hi Jonny,
We are nearing completion of a 1/10th off-road track at Blyth, Nottinghamshire, its about 20-25mins from Sheffield..
Heres a video of the track so far:
http://www.youtube.com/watch?v=XemZOAItPzI
And the track website:
www.robinhoodraceway.com
Drop me a PM if you'd like to come up.
James