Smog rating of the 991.2
 

You folks must have seen the smog rating of the turbo sixes in the 991.2. It varies by state and you can look it up on fueleconomy.gov.
The new 911 scores an abysmal 1 rating on a scale of 1-10 in its class. The flat four turbos in the Boxster and Cayman fare better. Also for comparison, I looked by the F type which scores quite well. Even the Mustang with a V8 scores better with a 3.
I am somewhat disappointed. I suspect with these aftermarket exhaust systems ( that I have been researching) and their reduced cell count in the catalytic converters, emissions will be much worse.
Of course people will dismiss this and say that the 911 is a performance car and who cares about emissions etc. But Porsche should.And not just CO2 emissions. I suspect they will.

Well, that's a shame. I am with you. You'd think coming from a 3.8 to a 3.0 that things are heading in the right direction. And, that these tried and true engines are becoming "finely oiled machine" ...or... maybe that's the problem (metaphorically).

Don't worry. You'll be able to buy a Mission E soon.

Mission E = Yes. Bring it on.

Mission E Cross Turismo = No! Why do I need to SUV'ise my four-door.. And, why did I need four doors, again?

Why do I need a car without an engine?

To go fast, powered by your home's solar panels?

OP, please post these findings, like screen shots of whatever site you're referring to. Not sure I believe it the 911 is the worst in its class. (What class is that, BTW?)

Also, yeah, you sort of answered your own question. Bottom line, the more horsepower an engine produces, the more gasoline it burns, and the more emissions it creates. Turbocharging can make an engine more efficient, and cats can remove pollutants from the exhaust. But there's no way to make a 400hp engine pollute the same as a 150hp engine. If you want 150hp emissions, you're gonna have to get a 150hp car.

Didn't know the 911 was slow to start. I'll stick with high revs and real sound enjoyment.

Don't worry, Mission E will have electronic sounds pumped though the cabin to re-train the next generation of how a car should sound.

Yeah, but a 911 or sports car and complain about emissions. Like mentioned buy a Prius and donate the rest of the cash to some earth group.

The only thing that will affect emissions in an exhaust is the cats. If you want more sound you don't have to touch the cats, you can change mufflers.

Amen Brother!!!

I cannot imagine a world where people desire to be driven around by autonomous electric coffins but sadly it will be forced on us soon enough.