The Rocky Mountain Institute has concluded that platoon travel alone could reduce fuel consumption by 20-30 percent. Additionally, these vehicles are highly compatible with car-sharing programs, and, using their ability to communicate, will also be able to reduce the fuel consumption and emissions associated with searching for a parking space. This opens up additional unforeseen possibilities – what if our new autonomous cars have a “valet” function, which allows them to operate not only driver-less, but totally passenger-less? May we one day find ourselves sending our cars out to run errands, or pick up the kids from school?