joemessman

Depends on the individual. If you like the benefits get the ZP. Personally I like advantage of being able to keep driving to a service facility. I had three flats that could not have been fixed with a plug kit, so I was glad to have the ZP. Some say they are noisier because the the stiff inner side wall, but that sidewall doesn't even come into play unless the tire has deflated. Some say they ride rougher. I tested both the non ZP and the ZP. The discount tire manager and I went Down to Parker AZ and back on both sets. Neither one of us could tell the difference in noise and ride stability.
Now with that said, you'll have some comments that contradict the information I just provided you. Go figure.
The on the road test was not a figment of my imagination, nor do I have any bias one way or the other. Just reporting the facts from my experience.

wrecker3

Foosh

That's right. My OEM PSS was ZP, and my AS3+ set was not, but only because the ZP version wasn't yet available. I could tell no difference in ride quality between the two. I prefer the ZP versions simply because they should not leave you stranded on the side of a busy highway.

daveven

Here"s mine with the AS 3+

laserjack

Thanks for all the answers, info, opinions, and the pics. Appreciate it !

Laser Jack

The Rabbi

I've been under the impression that run flats ride harder so on the C5 I stuck with non zp. I may have to change my thinking now.

Foosh

That's a very dated perception that many folks continue to cling to.

It used to be true because sidewalls of ZPs were actually thicker, when they first debuted 20 years ago. However, today's Michelin ZPs use the same sidewalls and rubber compounds as their non-ZP counterparts. The ZP has an extra band next to the inner sidewall that supports the tire at zero pressure. When inflated they ride and handle the same.

BigBoyRon

^^^^^ this was very helpful information for me. I bought a used 2019 Stingray with 12,500 miles. I probably want need tires until next year.

USCG

Still have the OEM PSS on a base '16 convertible and need to replace soon. Seems a consensus that the ride of the A/S is comparable to the OEM PSS, & handling in wet can only be better. Can anyone comment on the noise factor? On some roads, the PSS can be deafening. Be nice to also have that issue improve with the A/S.

Continentals are supposed to be very quiet, but would like to keep the security/safety of the runflats.

AirborneRanger

Changed to the AS3+ ZP about 18 months ago, base 2016 coupe. Noticeable difference in noise and stone pick-up. Did not notice any handling change except in rain; felt more "grounded". Did ~2000 mile one lap of FL from north of Atlanta right after putting them on. Made the car a very comfortable touring / road car, could even hear the radio. Hit a stretch on Tamiami Trail where I fell in with four other vehicles for a nice sustained run a bit above speed the right lane was running and was highly impressed with the tires and vehicle handling. Great tire pick for a great car. Can't speak to the Continentals on the C7. Suspect you will not regret going the AS3+ route. Ran them on wife's car for years and obviously a fan.

joemessman

Took a twisty drive this weekend on my new A/S 3+. I'll probably go back to the OEM PSS. The A/S were a little to squirmy and my rear end would loose traction at 1.1 Gs and squeal like hell. The OEM PSS were well grounded up through 1.2 Gs. The A/S have a little less road noise, but I'll take a little more road noise with the better traction. The only problem is they won't last as long as the A/S.