New and enforced speedlimits:
Freeways: No limit. Let them drive as fast as they want.
Any road other than freeways: 40 mph
Any road without a bike lane or shoulder: 30 mph
Any residential or downtown street: 20 mph
Registration fees based on weight of vehicle so that one aging Ford Excursion pays every year as much as five or six Lamborghinis.
Undercover traffic police that look like ordinary cars until the lights start flashing.
Camera equipped undercover bicycle police disguised as ordinary cyclists and serve the same function as those "red light cameras."
Three strikes for motorists. After third reckless driving or DUI, license is permanently revoked in every state. Person can no longer register any vehicle in their own name and any vehicle the person is caught driving will be permanently impounded.