Orange Line cars in a Red Line yard

The first couple of test models of the new Orange Line cars now sit with new Red Line cars in the MBTA's Cabot Yard in South Boston, which, of course, makes you wonder how they got there (secret deep-underground switch at Downtown Crossing?).

The T now has two of the new Orange Line trains running in service; some of the new Red Line cars are being tested, but the T said this morning it does not yet have a date for when they'll actually carry customers. You can get a good view of them from the James Kelly Bridge.