Comment by dmurray

Presumably there's some level at which this can be solved in a purely monetary way.

If the average Dodge Ram causes X millimorts of deaths per year (per km? per km on suburban roads?) and every dollar spent on public healthcare (drug interventions? road safety? Fire departments?) saves Y lives, you can increase the tax by X/Y, trust the government to spend the extra revenue in the most effective way, and everyone comes out better off.