While all the comments regarding 1986 cut off seem to make sense, the 1985 date is same as Motor Racing Legends HTCC. (Although full regs not on MRL website at moment, so only going from memory!) Maybe one organiser has followed the other or have they both come to the same conclusion for the same reason?
Also, would it not be possible to just exclude some models such as Sierra or M3, or would that infringe someone's human rights......
