The only engine change to occur on this route was at Jacksonville where the IC E6A 4000 was exchanged for the FEC's EMC E3 1001 to Miami. The City of Miami was the only one of the three Chicago to Miami lightweight streamlined trains to operate with diesel power over the entire route from the beginning. The City of Miami route was and the train made 25 stops en route, only one of which, the Jacksonville stop, was for an engine change. In spite of the number of stops the diesel proved more than capable of maintaining a average. The City of Miami consist was the only one of the three Chicago – Miami lightweight streamlined trains to operate with cars built by Pullman Standard and the only one of the three trains to be diesel powered end terminal to end terminal.
