Old vs New.
The black one is built around the Scattante SSR steel frame , Sram Omnium crankset, Mavic cxp wheels, 48x16 ratio with freewheel hub.
Put about 1k miles on it, a few metric and centuries and wanted to get something more aggressive / aero.
Enter 2016 fuji track pro, picked it up for under $1k new from LBS. Comes with 48x15 drivetrain, so far have about 110 miles on it, and already beating my previous strava records.