In the wake of the 2007 Urban Challenge, several companies began to pour some serious money and effort into developing driverless car technology that could roll out onto real-world roads. From Google to Uber, we take a look at some of those projects.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices
