After seeing Bowling Green, and how it's set up for a customer experience, and seeing Oshawa, a plant build to build cars, the only thing that could make this work is if they built a whole new building or facility.
They're not going to let an outsider step foot in there.....Hell, I was in the security sniper scope for just being on the sidewalk across the street with a camcorder in my hand!
What you MAY get is more "company" involvement in an annual event NEAR the facility, like the annual August BBOMG. It was impressive to see how many employee's (factory and High ranking management types) that came out to talk and meet with each of the event attendee's. It was one of the coolest things I've ever seen -