I heard there is no rhyme or reason if you get Michelin or Pirellis from the factory. Looking on the local dealers' floor at 911's and Caymans Pirelli was on about 80% of the cars with Michelins being 20%. Small sample size.

I have both brands on other cars and really like the Michelin PS4S the best.
Any other brands? If so, what kind? Continental?

 

Porsche equips cars exclusively with N-rated tires, which have passed whatever requirements Porsche hands the manufacturer. Generally there are only two or three available types for a given model and you don’t get a choice on a new car. As noted, they are currently equipping 718 Gt4, Spyder and GTS with either Michelin or Pirelli summer/performance tires. They also use Goodyears, Continentals, Dunlops and others on their cars. There are pdf’s available with all the various specs, but I don’t have a current copy.

 

My car came with Dunlop Sport Maxx Race 2

 

N rated!

 

N rated seems a little low on the MPH scale (87). I have Michelin PSS Y rated (about to be changed to the new PS4S) which is 186 mph rated on one of my cars.
My winter Nokian Hakkas have a higher rating than N. They are rated at 106 which is an R rating.
I would expect the tires coming on these Caymans to be W or Y rated.
N rating is for boat trailers.

 

They are Y rated at 186 mph like Michelin PS4S.

 

Glad you figured it out.

 

you are I am afraid mistaken/uninformed, many high performance/German car manufacturers, including Porsche (N), and Ferrari (K) work in concert with their tire providers in order to fine tune a particular tire model e.g: Michelin Pilot Sport Cup 2, and 2R, for a particular model car, such as the 911, 718, and in the case of Porsche, these tuned tires are designated as N0 or N1 depending on the generation of the model specific rubber available.

If you compare two tires of the same model you will note that the Porsche version has the additional "N0" or "N1" designation imprinted on the tire wall...

This is also reflected in sites such as tire rack where they will list brand variants in addition to the "vanilla" version


Nothing to do with the speed or wear ratings...

 

The point was to see what kinds of tires cayman owners are getting new - The Dunlops were certainly new to me. My SA said he sees Pirellis and Michlin's the most.

 

Interesting - I knew manufacturers have specific tires made for their cars but didn't know the N vs the K designation. Corvette has had special cup 2's for the Z06 models.
thanks for the info!!

 

then the forum has served its purpose!

I forget what the letter designation is for MB and BMW but I think there are ones also!

 

I didn't know that Pirelli were an option, I thought it was Michelin or Dunlop with a 50/50 chance.

 

Attached is the most recent copy I have of the Porsche N rated summer tires.

 

Here’s where some are getting confused. The “N” people are referring to here is not a rating, it’s a specification (spec) as in N-spec. GM uses a TPC spec, it defines the construction and compound approved for their application. There’s also additional confusion because the GT4 / Spyder are different sizes and specs and use tires not used on any other.

GT4 / Spyder are either Michelin Cup2’s or Dunlop Sport Maxx Race 2’s, Spyders also have the option of specifying a HP tire vs, UHP and those have so far been PS4S.
All others are either Pirelli PZero or Michelin PS4S, I don’t think the 20/21 models years are doing Goodyear, Conti or Yokohama’s anymore but I could be wrong.

Also, the number after the N like N0, N1, N2, etc. represents a version number. When the manufacturer updates a tire model, like Pirelli did with the PZero back in 2016 they recertification the tire with Porsche and update the sequence number. This prevents someone from mixing construction and compound when the same size and model gets an update.

 

Exactly, thanks for clarifying for those that did not know. I ordered my Spyder with the high-performance tires/non-cup and I expect the PS4S tires.