Chariot could be based on any of the many coachbuilders in the United States that specialize in hearses. Being a coachbuilder, rather than a manufacturer, Chariot do not have their own logo visible on their vehicles, so it is unknown what chariot's logo looks like. Their sole vehicle, the Romero, retains its Albany badge, (as Albany supplied the Washington it is built from).
Chariot's sole vehicle (the Romero) has coachwork that bears a strong resemblance to the coachwork found on the hearse that carried former U.S. President Ronald Reagan to his grave (http://en.wikipedia.org/wiki/File:Reagan_hearse.jpg), leading one to believe it is based on whichever coachbuilder built that hearse. It may be based on a American car manufacturer Lincoln.