In 1990, the Danish shipping company Mærsk contracted with the Santa Fe Railway to paint one of their new GP60M locomotives into a special paint scheme to be used for filming footage for promotional purposes. ATSF GP60M 146 was delivered from EMD in primer and painted into a "Maersk blue Warbonnet" scheme, complete with Maersk lettering on the long hood, and sent west. A train of clean Maersk well cars full of clean Maersk containers was assembled, and along with ATSF 146 the train spent a day operating over southern California's famed Cajon Pass, while camera crews were set up trackside and in a helicopter to film this special train. ATSF 146 was on the point of the train, with ATSF GP60M 144, in the standard red and silver "Superfleet" scheme, with a second operating crew, on the rear in order to facilitate the reverse moves needed to obtain multiple takes and various camera angles. For the railfans fortunate enough to spend August 13, 1990, on Cajon Pass and nearby Victorville, it was an enjoyable day with way more photo opportunities than one could reasonably expect. Not long after filming was completed, ATSF 146 was sent back to the shops to be repainted into its "Superfleet" markings, but with one slight difference – the Santa Fe roadname on the long hood was in the railroad’s variation, while the rest of the GP60M fleet carried the roadname in the EMD variant (in which some of the letters varied in thickness, even within the same letter, such as the "n").
