No. 2016 is a double truck motor flat car, with cabs at both ends and a derrick in the center for handling rails, wheels, motors and other parts weighing up to a ton each. It was built in 1912 by the Boston Elevated Railway. It came to Seashore in 1950. It was made operation with a pair of trucks from a Connecticut car (as it was obtained without trucks), but its crane is too worn out to be functional.
Similar Car 2026, built in 1910, also was a product of the shops of the Elevated. The elimination of most street trackage and the shift to rubber tired work equipment had rendered 2026 surplus in Boston and it came to Seashore in 1987.
Historic Cars: The National Collection at the Seashore Trolley Museum by Ben Minnich