They are. Any gas tax is a tax on the fuel economy of the vehicle. If pickups get less MPG, they are taxed more on gas tax. Some US states base vehicle registra

They are. Any gas tax is a tax on the fuel economy of the vehicle. If pickups get less MPG, they are taxed more on gas tax. Some US states base vehicle registration fees on the weight of the vehicle, which is another tax on heavier vehicles (like pickup trucks). More damage done in accidents is something the insurance companies would have to deal with, and if it's actually a problem you can guarantee those insurance companies have already factored it into the rates.