If energy just cost what it actually cost (no fossil fuel subsidies) the rest would follow. The market distortion from gas subsidies has caused this mess, we didn't get to everyone driving a 5000 pound vehicle due to the free market. We got here because of backwards laws and automaker's exploitation of said laws.

Fuel or electricity should cost what it costs. Vehicles need to be taxed according to their externalities. Heavier vehicles have more externalities. Road maintenance, pollution, traffic injuries and fatalities to name a few. I think if we did these things we'd trend back towards reasonable vehicles over time, and that would be a big net win.