EMBARGO - FOR TTC BOMBARDIER PROJECT - CONTACT PHOTO DESK FOR ALL USE BEFORE PROJECT RUNS - 416-869-4341 TORONTO, ON- APRIL 6 - The first prototype, car 4401. The TTC has worked with Bombardier on improving the prototype streetcars for passengers and their mantiance staff. There are a few key changes between the prototype and the newer models rolling out. in Leslie Street Barns in Toronto. April 6, 2017. Steve Russell/Toronto Star