Change the laws. If it is a truck you should have to get a CDL, have to go to weight stations, cant drive on the parkway etc. If it is a car it should have to follow the emission rules cars have. There is no point in having standards if we make exceptions so big you can drive a cough.....sports utility vehicle....cough through.
Edit: of course we can pretty much end the pickup market tomorrow if we provide free therapy for men with a micropenis.