Theoretically such a locomotive would be more powerful and efficient than a conventional two cylinder design. Estimated Import Fees Deposit. General Motors also custom-built twelve streamlined Futurliners for its Parade of Progress and, later the New York World's Fair and travelling exhibits. Bicycle fairings help to streamline the vehicle and rider. Here is a colorful 10 inch round plaque featuring the Atlantic Coast Line, that will easily fit in a.. This hazard more than any other doomed the operating life of this engine.