> We can use the EV credit as a tool for improving efficiency. Instead of subsidizing per kWh of battery, we subsidize per mile of range. The first 50 miles of range (ie to be a plug in hybrid, but need at least 6.6kW charging speed) are incentivized at $100/mile of range. The next 200 miles of range $25/mile (under the condition of 100kW fast charging capability).

> That way car companies are incentivized (even more) to maximize miles per kWh.

As long as battery charging times are so slow, IMO car companies already have a ton of incentive to make their EVs efficient, as range is a big differentiator and batteries are such a large cost component. I suspect there isn't a lot more efficiency that would be gotten out of a change to incentive structure.

> Also, a Hummer EV is displacing other large vehicles. And if everybody drove subcompacts or other hyper efficient gasoline cars then we’d have less of a problem anyway. But not everyone is doing that. And a lot of people don’t want to.

This is a big source of waste and inefficiency though. People just needing to commute by themselves from A to B and buying pickup trucks or large sedans with poor efficiency, then whining whenever energy costs shoot up.

As a taxpayer, I would much rather if my taxes subsidized programs that encouraged people to be more frugal with their vehicle type choices.