There was one racing with the micros at ellesmere port the other week. It was much bigger than the other 1:16 scale cars and probably isn't really designed for twisty racing but it seemed to go ok.
It's not eligible to run in the micro national events as it has too long a wheelbase (205mm I think) and the maximum allowable wheelbase is 190mm. That said I doubt anyone ould mind you giving it a run at a club event.