Mini Marcos: the half-tonne fibreglass car that finished Le Mans (1965-1996) The Mini Marcos is a tiny glass-fibre monocoque coupe built on Mini subframes, sold mostly as a kit, and famous as the only British car to finish the 1966 Le Mans 24 Hours. A guide to its tangled origins, the Le Mans car that was stolen and found again, the model lineage, what to look for, and what they are worth.