Just spotted these on e-bay and although they look like standard rover alloys the advert states they are 12x5 and calls them Mistral alloys.
i think i can see 12x5 on the rear and the back of the spokes look different to rover alloys so does anyone know if these are the alloys that John Cooper was offering as part of the early conversion kits and also appeared on the Mayfair Cooper prototype pictured below ??
if so they are as rare as unicorn milk and a bargain at the asking price !!!