Too little and too late. Draconian measures are necessary to push automakers into compliance and to push consumers to buy. It's expensive unless we want to sell out to China completely, but necessary and in the end, affordable.
Into compliance? Compliance of what? Also why do you want draconian measures to push consumers to buy? Shouldn't you let consumers buy whenever they can afford to change their cars? What kind of draconian measures are you thinking of, emission regulations that make it impossible for poor people to drive their cars?
Certainly, to limit oil imports and consumption, we should ensure that poor people can't drive gas-powered cars.