It's not the cost of it that annoys me, it's the unfairness of it.
My Wife's car is free.
My Daughter's is £30.
My bike is about to go over £100.
My car is £680. Yet a newer 5 Litre version is £320.
The numbers are "made up" and not based on anything other than forcing certain vehicles off the road.
My Brother drives an old unrefined MG that pumps god knows what out the exhaust and that's free too.