BART has started selling number plates for retired legacy cars (on Railgoods.com and sometimes in person at the Lake Merritt Customer service center).
As the owner of the BARTchives, a recorded rider of 660/669 legacy fleet cars, and a person who has also taken a photo of almost every car, I'm happy to share my pictures and any neat details about your car. All I ask is that you send me a photo of your number plate, and if you share the car picture(s), that I be credited as the person that took the picture(s).
As a disclaimer, I am providing this for free, subject to my time availability. There is a rare chance that I do not have any pictures of your car, and higher chance that I may not have a perfect photo of it. This isn't some professional outfit - it's a hobby.
Contact me on the "About" page or by emailing atptransitATgmail.com (replace AT with @). I am happy to see interest in my photo collection and have so far provided pictures to owners of 5 different car number plates.
"The Two Bagger" is meant to be a place to store more "blog" style posts on various cars, pictures, and random tidbits. At BART, a "two bagger" is a rather informal name for a two car train. Two car trains rolled in revenue service back in 1972.