Put your best cab forward with this latest release of the Southern Pacific's AC-12! One of our most popular models has been made even better with the addition of Bluetooth, Lionel Voice Control, bi-color marker lights and selectable horn and whistle options since our last release. New prototypical and fantasy schemes are also available. The last run sold out quickly - don't miss this opportunity!Developed to keep crews ahead of the exhaust fumes which lay thick in the tunnels and snow sheds along its mountain crossings, the Southern Pacific's cab-forward design was as iconic for the railroad as their Daylight passenger trains. The AC-12 class were the last and largest of the type, serving only a few years before diesels replaced steam on the hill. But for their time they were among the most impressive machines to be found anywhere.