13. The Beast
Complex Says: So it's not a production Cadillac. Sue us. What it is, however, is a car with a speculative features list that includes awesome things like 5-inch-thick armor, tear gas emitters, multi-spectrum infrared smoke grenades, a self-contained oxygen supply, a self-contained backup presidential blood supply. This is all just rumor-mongering, though, since "one of the specifications is that we don't talk about the specifications."