MBTA exercises option to acquire 60 New Flyer buses August 28, 2014 | North America Company News The Massachusetts Bay Transportation Authority (MBTA) has exercised options to purchase 60 heavy-duty Xcelsior buses from New Flyer Industries. The buses will be 12.1 metres (40 feet) long and be equi... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password