Quote Originally Posted by Brynmor Pierce View Post
You could in theory use one in UK national championship https://www.btrdarally.com/wp-conten...-RC-Reg_v2.pdf
Careful - that isn't the UK National Championship. It's a club championship of the British Trials and Rally Drivers Association Ltd. The UK National Champiionship is Brittish Rally Championship which doesn't permit WRC cars, current or obsolete.