[HWR_14]

> How could the government limit the size of vehicles?

Tons of ways. For instance, "a car must get at least 40 MPG". "A car can weigh no more than X". There are lots of whats to phrase the rules.

Or do you mean "how could the government possibly enforce a law against a product in a highly regulated industry with compulsory registration", in which case it seems obvious.

[kube-system]

> "a car must get at least 40 MPG".

This is basically how CAFE works, and it's part of the problem. Trucks are necessary for commerce and utility, and we allow people to drive them on the road. So we now have a road filled with vehicles that are technically "trucks" carrying families instead of "cars".

[HWR_14]

I mean, we could redefine "truck" to exclude SUVs.

[kube-system]

You could. Whether or not you’d get a desirable outcome is up to the particulars of the implementation.

It’s worth remembering that the current state of things is an unintended consequence. Describing the problem generally is easy. Defining it specifically enough so that there isn’t a workaround is the tough part

[frumper]

A 4 door truck would probably be the new family vehicle.

[ibejoeb]

Certainly. I'm not saying there is no way to do something like this. This post just doesn't offer anything.

It complains about environmental matters, and then it goes on to complain about weight. Make one wonder if the author has ever weighed a car-sized battery.