This is indeed plausible and has happened for other commodities but note: 1) since the model-T, inflation adjusted consumer prices for automobiles have never dropped and 2) car manufacturers have historically replicated or bought any serious profit centers in their supply chain.
>Evil
Shareholders act in their interest, employees act in theirs. Often everyone ends up fairly satisfied. Is that not how the system is supposed to work and is describing it plainly without effusive praise now automatically suspect?