It's now possible to take BART all the way to the airport. Here's the driverless three-car train that runs on an elevated track between the regular BART station and the airport. Previously the trip was made by bus. The system broke down several times in the first month but now seems to be running smoothly. It's a quick and easy ride that drops you off in front of Terminal 1. Pretty cool and it only cost a smidge more than a half billion dollars to build. Yep, that's with a B.