(Updated 11/7/2026)
The 1954 GM PDX-4901, better known as the “Golden Chariot,” was an extraordinary bus that was decades ahead of its time. The 40′ high-floor coach with large underfloor storage became the standard configuration for practically all modern highway buses. But just who pioneered that? The 1956 Kassbohrer-Eagle was the first production bus of that kind. But there was a precursor to it, the 1954 GM PDX-4901 (“Golden Chariot”), a giant of a bus that GM had high hopes for, but one that was rejected by potential customers and never made it into production.
For years, its fate was unknown, and it seemed likely that this important piece of transportation history had disappeared for good. Now there’s good news: the long-lost prototype has been found, tucked away in a Massachusetts bus company’s storage facility, with hopes of a full restoration. It’s a welcome opportunity to revisit one of GM’s most intriguing experiments—and a bus whose influence far outlasted its brief career. Considering that GM utterly dominated the bus market at the time, and its other buses were copied by everyone else, the failure of the PDX-4901 is a surprising aberration. Read the rest of this entry »
