Yes, we buyers almost always knoiw more that the sales people about these cars the fine details about the options. Porsche does not docuemnt them very well at all.

It's not a "SportChrono." It's a refined Compass! Isn't it? It certainly costs extra and has settings specific to one's latitude to compensate for variances in the magnetic north of different zones.

I did not know the collapsible blow up spare in my CT is only 19" but it makes sense. Mine came with 20's but most of the time I run 18's and the 18" tires are slightly larger in diameter than my 20's.

 

This is an odd (if not legal) issue. My Z06 & M3 were without spares too; However, in Virginia you're supposed to have one to pass Annual Inspections.

I guess its like the early mustangs, who substituted that 'trumpeter' exhaust for the reverse lights... if you didn't get it, you don't need it !

 

Does anyone know how to use air suspension to inflate the collapsible spare tire?

 

While I've never had to fill my spare tire (knock on wood) I use the supply hose to inflate my tires all the time. I prefer to employ TireRacks PsiClops hose to adjust two tires (one axle) at a time.

Remover the rubber plug in front of the front passenger seat. Take the air supply hose from under the rear seat on the left side. Screw in the supplu hose while the SUV is running. And fill away.

I attach the Porsche supply hose to the PsiClops and clip to to both tires, filling both at the same time.

 

That's helpful gr8tful...thanks a lot!