- sales tax on cars/trucks is by weight and exponentially increases the heavier the vehicle gets
- increase taxes on gasoline
- require a special license to operate a vehicle over XXXX lbs.
- rewrite laws or encourage DAs to prosecute drivers that injure other people in cars or pedestrians even if it's unintentional
- illegal to have passengers in the truck bed (some states still allow this).
These are just off the top of my head.