OK, *finally* I can officially put the legal issues to bed.. I have the response from MSA in my email and it goes as follows: Dear Steve, If the event is non-competitive (such as a touring assembly) and using the public highway, there are no restrictions. If there is a competitive element, even if the competition is on different venues off the public highway & you are just moving from one venue to another – Route Authorisation from this office will be required. Kind Regards David Powell Competition Authorisation Office Motor Sports Association, Riverside Park, Colnbrook, SL3 0HG That's it lol... I am satisfied that we *totally* conform to the regulations and am getting back to everything else