Original TTC "Red Rocket" subway cars, either the painted version or the single trainset of natural metal ones made by Glasgow in Scotland for use in Toronto. If talking heavy rail, then Budd RDC. For heavy electrics, GMDD SW1200 MG motorr -generator versions of the SW1200RS made in the 1960's for the Iron Ore Company of Canada. Photos of them other than the GMDD builder's photos are very rare because of the romote location of the line they ran on.