The problem is height not necessarily length or width.
I'd also add some limits on weight or a way to push manfucaturers to make lighter cars. Lethality increases with the mass of the vehicle as well. Average car is 400kg heavier than it was 8 years ago. All the extra mileage wasted on carrying leather couches just to be more lethal when we get into accidents
Just say the truth, you wanted punitive action. Now go ahead and ban me as well on any way communities you mod I don't want to ever hear of you