The whole argument is asinine; we have lots of fuel to extract, and a lot of time. They should relax mileage standards and produce cars people want. That's how you would end up with a healthy auto industry... as well as smashing unions; those that have inflated wages and have benefits that cripple companies.
They can try to develop e-cars, or hybrid cars, hydrogen cars or wood burning cars, but don't expect many sales, and surely don't put your company's fortunes on the line with them.
These shoe boxes that are supposed to save the planet result in more fatalities or deaths. Of course... it's the average Joe and his family, or the poorer amongst us that tries to save a few bucks that drive the small, light death traps. The average amongst us... take it in the teeth again, and for what?