@GG1 4877 posted:NJT and MARC have Bombardier Multilevel coaches which are distinct from Bombardier's Bilevel coaches.
MBTA double level cars were produced by either Kawasaki more recently Hyundai and while similar to the Bombardier design, not that similar.
Well at least the NJT and MARC are similar. But there is no NJT Siemens Charger.