By Cat DiStasio
Last week, US officials said that the computer in Google's self-driving car can legally be considered the "driver" -- a decision that could serve as a stepping-stone to making driverless cars legal on American roadways. Companies like Google and Ford are busy testing self-driving car technology, and Tesla's Model S already has some autopilot features to assist drivers. But just how far will automakers take autonomous technology? Read on for six of the world's wildest self-driving vehicles, from a car that moves like a crab to a vehicle with a built-in bed.