That reasoning doesn't make sense to me. Am I missing something? Let's say non-manufacturer revenue over a car's TCO is X. The largest portion of X will be spe

That reasoning doesn't make sense to me. Am I missing something? Let's say non-manufacturer revenue over a car's TCO is X. The largest portion of X will be spent on non-local goods and local labor regardless of who takes the profit, which has to be low enough to prevent stronger 3rd party service. It isn't like all cars would be shipped back to the factory for service.