If it's 1/16th scale you are talking about then you might want to get yourself over to the
ukmicrorc forum as it is dedicated to everything small scale.
Also, the 1/16 scale cars are not all that popular and you will find a much wider 1/18th scale audience. Saying that the scale really means nothing as the cars are all various sizes (just nonsense marketing blurp) and we prefer to run as 'micro's' and allow as many different types of cars (within reason) to get better participation.
You might also want to checkout
http://www.ukmicrox.co.uk/ukmx/events-ukmx.html