[Porsche-O-Phile]

Absolutely revenue generation. Any incidental benefit to increased environmental / air quality is completely ancillary and unintended.

I witnessed first-hand as a friend of mine with a well-tuned 951 and no catylitic converter FAILED the California smog check. His CO, NOx and particulate emissions were SOLIDLY within limits. In fact the car was running cleaner than a lot of cars WITH cats. Didn't matter. The goons out there made him go to a referee station and pay over $1,000 in fees and other BS just to get the thing to pass. Finally a "disappearing cat" came into being for one day a year. Utterly stupid.

Vehicles and vehicle ownership, sales, etc. are MEGA cash cows for government. Big, big, BIG money. There is no incentive whatsoever for governments to discourage vehicle ownership or restrict it in any way (e.g. handing out licenses to idiots who really don't have any business with one).

I'm glad you had good success with the inspection but please you're being milked. Moo! Moo!