The Pacific Electric Railway Company, nicknamed the Red Cars, was a privately owned mass transit system in Southern California consisting of electrically powered streetcars, interurban cars, and buses and was the largest electric railway system in the world in the 1920s. Organized around the city centers of Los Angeles and San Bernardino, it connected cities in Los Angeles County, Orange County, San Bernardino County and Riverside County.electric trolleys first appeared in Los Angeles in 1887.[1]: 208  In 1895 the Pasadena & Pacific Railway was created from a merger of the Pasadena and Los Angeles Railway and the Los Angeles Pacific Railway (to Santa Monica.) The Pasadena & Pacific Railway boosted Southern California tourism, living up to its motto "from the mountains to the sea.