Personally, that sounds pretty wonderful. Better yet, charge by vehicle weight. I'd like to be able to ride a bike on the road and have everyone think the guy in the car is imposing inconvenience rather than the other way around.
I would happily pay for congestion pricing because it would allow me to go where I'm going faster.
Right now we have this weird sunk cost and lack of obvious incremental charges to driving, that encourages driving when there are other better options for some trips.
