So today in Emeryville CA I crossed a grade crossing while going about my business, noticed there were headlights for a train coming, and pulled over a block away to see what was coming. To my surprise, it was a one car passenger train (behind a GEVO), and the car looked like some kind of business car with several solar panels attached to the upper rear side. Needless to say I was chagrined that I didn't have my camera out, and that the spot where I pulled over was a dead end which afforded only a few seconds to view the train and no ability to chase it.
Anybody know which car I saw?