So... why does that specific tarriff exist?
Have you noticed that GM had close to 630,000 employees in the 70s? Now they have about 170,000. So efficIency has greatly improved, yet our cost are only going up...
Someone mentioned price collusion... I do not have to prove it, instead there is little pricing pressure that exists among the big 3, due to brand loyalty. They simply do not need to lower prices over time...
Now I sure am enjoying my Camaro!