In late 2008, the MBTA took a pair of Red Line cars and removed all the seats. They called them “Big Reds,” and were meant to increase passenger capacity. They later re-installed half the seats, but there are none in much of the train. I got to ride one of these cars for the second time yesterday, and I took some pictures of the car.

My train was about to leave, but I ran out just as the doors were closing to ride Big Red.
A close-up of the sticker on the outside.
The inside.
A better view of the missing seats.