I hate when the CA started the whole thing. They also pretty much killed the damn hobby also, with the letter of the law instead of the spirit of the law which was intended to clean up the air.
When I was in the Navy my 1969 Barracuda still had the /6 in it. I bought it only running on 4 cylinders, figured out that someone jacked up the firing order, put that back and tumed it up. Found vacuum advance disconnected, hmmmm now wonder it gets crap MPG.
Went to get it smogged and uh-oh violation vacuum advance is connected. In order to comply I had to disconnect the vacuum advance and have a sticker placed on dash and windshield that it was NOx compliant. I seriously doubt a /6 was pinging away at steady cruise creating excess NOx and the piss poor fuel mileage was burning or not burning more gasoline. How is running more fuel through a gasoline engine producing less pollutants. Painting with a broad bush by putting my /6 in the same category as a Hemi car just because of model year. Whatever, I'm sure it's better now, but the rationale for killing off the performance of a economy car that can do, very practically 10-15,000 a year just to kill some NOx gasses from a high compression tempramental car in the same model year that would be lucky to be used a few thousand miles.
Rant over!