The New York Central "High-speed" railcar M-497, put together by the NYC Railroad in 1966. This first "High-speed" railcar, was a 13 year old Budd RDC (rail diesel car) that had once run in the Boston and Albany Beeliner Fleet. The diesel engines were disconnected and 2 GE J-47 turbojet aircraft engines were mounted on the roof. The car had a streamlined front, and special cylindrical tread wheels were installed. New York Central Railroad Publicity Photo.