And if we wanted more fair taxes to pay for "roads", we should add an average vehicle weight (empty weight + fully loaded weight / 2 ) times miles driven. And i

And if we wanted more fair taxes to pay for "roads", we should add an average vehicle weight (empty weight + fully loaded weight / 2 ) times miles driven. And it should probably be "regressive". The rate goes higher as the average weight does since heavier vehicles do more damage to roads (it's not linear). This would also require going in occasionally to have odometers read.