NS 201 rushes through the S curves in Shawsville, Va with a standard cab SD60 up front. The cab is still set up to run long hood forward, so the wave is coming from the engineer, not the conductor. Norfolk Southern has announced that their remaining fleet of SD60's are going up for sale, and that includes this unit.
The EMD SD (special duty) series are a strong and reliable kind of locomotive which still serve America's rails today. They have proved themselves reliable by clocking in several million miles of freight service over several decades.