Earlier quoted context omitted.
> only when they are "new" Ahh yes, they must benefit the environment only when new :)
Thinking only of the environmental impact, I'd expect any new car regardless of energy source to be far worse than a used car. Given the increased prices in the used car market (arising in part due to better durability and quality), I think I might be able to make an interesting argument for incentives towards purchasing used cars as being better for the environment than incentives for purchasing brand-new electric c…
I think in the US we would get the most mileage out of reforming CAFE to make it less friendly to daily driver trucks.