If your car was first shipped to Canada, chances are if was completely assembled in the factory. If it was shipped to the US, it as sent here in a giant crate, assembled except for the front axle beam, transmission, and engine. This was to get around the US emission laws at that time. For many of the US cars, a donor car provided the title, and your car may have the VIN plate that reflects this. Another give-a-way for a factory assembled car is if the engine compartment is trimmed off nicely with a special tin between the engine and the body.
Best regards,
Jim
