Passenger cars and light-duty trucks will be subjected to stringent new emission standards in the near future. Heavy-duty vehicles are not being left out of the mix and will have their own regulations intended to slowly lead to cleaner vehicles delivering goods across the nation. That's a good thing.
Sure, a six-foot protrusion sticking off the rear end of any vehicle is kinda funny looking. Unless we're talking about a Porsche 917/30 or a Plymouth Superbird. Those cars have some very fine rear extensions. Okay, fine – a six-foot protrusion looks a little bit weird when growing out of a semi-truck's rear. Happy?