20k/year
NO TOLLS they waste more money, either through slowing down for them or the cost of manufacturing cards,gps etc. Just raise the gas tax, simple! Then there is a real direct incentive to get better FE. The current tolls in the US are ridiculous, I pay higher tolls for a motorcycle with small trailer which does near zero damage to the road and gets better that 45 than my 7k-lb truck
Why, because these brilliant bureaucrats count axles. And don't bother telling them your bike has a single sided swing arm and has no rear axle
Ed