[misiti3780]

There should be a regressive tax rate tied to gas mileage, with exceptions for people/companies that can prove they need to use the vehicles.

[bombcar]

There is - as gas is taxed per gallon, the drivers of less-efficient vehicles pay more in tax per mile.

[mountainethos]

Yes, but how do you go about deciding which vehicles are OK to drive?

[misiti3780]

Except it doesnt take into account if you need the vehicle or not.