Other then known brochures, this leaflet shows original address in London where
Mini Jem was born. Could the car be the prototype? Also note delicious works Transit Van
UPDATE 25 May: Richard Porter wrote: "Jem no. 5 is KGH 858D - could it be that one?" I think he is right - I'd totally forgotten about its registration number while that particular car was fully featured in 'Maximum Mini'