Motoring Solution

Having considered the problem further, I now have the solution. Simply have seperate roads for trucks, BMWs and Mercedes, and, on another road, motorbikes and "soft" cars, ie cars made of plastics and weighing less than 800kgs. Slowly we would eliminate the truck and BMW roads, as they remove themselves from the gene pool, and we'll be left with a much better society in general. Goods would be transported by train, as in the old days.