Never been to this myself but it seems to come highly recommended from AROnline:-
"The BMC BL rally at Ferry Meadows Peterborough on Sunday August the 7th. As the show season slowly starts to wane this epic gathering off all things British from Austin through to Wolseley is a treat for those who regularly attend, and a must see for those who have yet to visit.
Set in superb surroundings, this show has only one theme, to celebrate our turbulent motor industry from all the divisions of what was BMC through to the latter day MG Rover Group. The auto jumble on site is superb catering for those looking for trim for a Triumph or some mats for a Marina.
Minis Metros Maestros Maxis… you name it. If its BMC through to MGR its bound to have a presence."
http://www.aronline....y-peterborough/