In 1991, General Electric built 20 Dash 8-32BWH diesels, all for Amtrak. While they didn't have anything close to a streamlined look, railfans loved them because of their impressive paint scheme, dubbed the "Pepsi Can Scheme" by the railfan community.
Passing through Orange, about to cross the Santa Ana River into Anaheim, where it will make a stop at the station in Anaheim Stadium (home of the California Angels baseball team), is a San Diegan led by Dash 8-32BWH 516.
Sure, the engine front and center in this photo is Dash 8-32BWH 509, but that it is on the train's rear, which also explains why there is a clear signal apparently behind the train, but it is really in front of the train, heading west on the Santa Fe Railway San Diego Sub’s mainline. This train, number 573, is comprised of Amfleet cars and headed to Los Angeles from San Diego.
Stretching from San Luis Obispo to San Diego, the Surf Line has become Amtrak's second busiest route. See the Pacific Surfliner and San Diegan in action along with trains from predecessors Santa Fe and Southern Pacific.