Given that EMD has worked for some years with Vossloh in Spain on passenger and freight locos for the European market (basically EMD power equipment + Vossloh mechanical design/build), I wonder if some of the mechanical design might be derived from the Vossloh Eurolight loco - http://www.vossloh-rail-vehicles.com/media/downloads/pdfs/flyer/Vossloh_EUROLIGHT_us.pdf (this is CAT C175-16 powered, and available with 125 mph/200 kph capability)
Tony