The Crown Victoria has reigned supreme in the cab world for so long that it's hard to imagine a time when other cars served as taxis. Oh, sure, we know about the Checker Marathon, but it's easy to forget that each of Detroit's Big Three used to put a lot of effort into pushing their full- and mid-sized models to cab companies. Here's a factory brochure for the taxi-ized Fury and Belvedere for 1968, courtesy of the folks at the amazing Old Car Manual Project. [TOCMP.com]