The Google Self-Driving Car Project's "panda" test vehicles became its trademark. Now named Waymo, the project has retired the panda cars in favor of sturdier on-road test vehicles. Image source: Alphabet.There has been a lot of talk -- among investors, among futurists, and definitely among people in the business of building cars -- about autonomous vehicles.It's very likely that the first fully automated vehicles will come to market in just a few years, and maybe earlier.