"Ford used to test Model Ts on the roof of this Toronto factory."
Here are a lot of photos and info about that plant and the second Model T plant in Toronto as well. Both plants still stand an have full public access.
I happen to be in Toronto right now. If I had my T here I’d go looking for the place.
Tim. Parking for your T is not the best there. Still, if you took your modern ride down there, you can have lunch right in the old showroom and hopefully, the Model Ts are still on display. The owner loves the history of the building and would be proud to show you around.