Mark,
There are a few clubs around the SE that race micro but not many. High Wycombe and Taplow spring to mind, and I also had a phone call from Danny Conway (Essex fella) who said that he has information on a new club/venue so ill try and remember to pass the details over to you
Phils detailed post earlier perfectly sums up the GT14B. If you want to have a look at some quality photos of the car have a look on the CML Distribution website