Noun
(historical, informal) A streetcar of the former Pacific Electric Railway mass transit system that went all across Greater Los Angeles.
My father used to talk about how you could take a red car just about anywhere in the Los Angeles area.
(historical) The entire now-defunct corporation and system of the Pacific Electric Railway.
The red car operated from 1901–1961.
Used other than figuratively or idiomatically: see red, car.
Source: en.wiktionary.org