Taxicabs of the United Kingdom the comic book "Hellblazer", Chas Chandler's job as a taxi driver is the basis for various plot elements of the series. The Knowledge, its runs, and to a certain extent the role of the PCO, form the basis for a future religion in Will Self's "The Book of Dave". The Taxi and Private Hire office is the body responsible for licensing taxicabs within Greater London. Taxi and Private Hire is part of Transport for London and is responsible for licensing the familiar London taxicab or "black cab" and also licenses private hire or minicab services. "Black cabs" were traditionally coloured
Yellow Cab Company equally divided amongst Hertz, Parmelee and a small group of other investors. Hertz sold the Yellow Cab Manufacturing Company to General Motors in 1925. He sold his remaining interest in the Yellow Cab Company in 1929. Yellow Cab Co. (of Chicago) was bought by Morris Markin, who had established Checker Cab Manufacturing Company, with the Checker Taxi, a driver's cooperative. In 1929 he sold his remaining share of Yellow Cab to concentrate on car rental (later Hertz Rent-a-Car which incidentally still uses a yellow logo). The sale was prompted by the violence associated with the business that culminated in 1928