I think M has family reasons for buying a "north american" vehicle, am I right? The only ones of those that remotely hold their value are trucks and SUV's. None of the big three concentrates on passenger cars any more. They lost that marked to the imports long ago. If it wasn't for the fleet sales to rental companies, they wouldn't even make them anymore.
I looked at an Acura MDX last summer, a $42K car. Something like 75% of it was made in north America.
I also think I misread Montana's rock & roll side. Look closely, you'll spot the TNUSA sticker in the rear window.