Railpictures.net viewer Jim Mardiguian writes (see below) to say that this is most likely a capture of PRR 4999, a one-of-a-kind prototype built by B-W as a competitor to the GG-1 design. The GG-... (more)
Humming into Newark International Airport's train station. Amtrak 946 could use a fresh coat of Phase IV. Also notice the after-market air conditioning system.