Here's an "Undercover Brother" for you, MARTA #2358 at College Park station. I call this one (and several other 2300s in this series) Undercover Brothers mainly due to the fact that some of them are actually C40LFs. Their CNG tanks are mounted underfloor. Some of them actually smoke like hell, leading me to think that they MIGHT be running a FlexFuel propulsion system or something.
