I've been waiting for the Michelin PSS's for 6 mts. now to replace the PSS's on my XKR. The front 255/35/20 are available but the rear 285/30/20 have been on back order since Jan. I contacted Michelin and Tire Rack and there is no production date for the rear tires and Tire Rack said that they believed that that size was discontinued.

 

did Michelin come out with a "better" different tire or ???

 

bridgestones may be next best thing at this point.... ugh!

 

No, the Michelin Pilot Super Sport is the best one. I really liked them. But it seems that the 285/30/20 was only used on Ferrari's and Jaguar's and my understanding is that Michelin decided that there was not enough demand to keep producing that size. The second best tire according to tests (not regarding price) seems to be the Bridgestone Potenza S-04 Pole Position which is available.

 

Running mine (Dunlop SP01's)at -2psi and that seems to get rid of the brick ride. Granted early morning flat spotting takes an extra minute or 2 to quell but its a good excuse to weave and have fun. Don't give damn about how long they last, but I don't like them!!

 

Running 4x Bridgestones.. but the rear ones have already dried out (after a mere 1.5 years) and left back needs replacement asap.. cracks are already visible... guess they don't last that long in ~100F (40+C)

 

Yes, there's an MPSS model, 285/30 R20 99 Z(Y), that replaces the stock rears, and a 255/35 R20 97 Z(Y) fit for the front too. Michelin still shows the 285 on their Uk site, at least, and my normal tyre source still lists them too.

 

Given the choice, which would be better:


Pirelli P-Zero (2014) or Michelin Super Sports (2013)


?

 

I currently have P-Zeros (no idea what year). I will be trying MPSS when I replace my rear tyres. I'll also be trying 305/30 rather than the standard 295/30 - my car runs on Vortex rims, same dimensions as the Vulcans on the R-S, and I know the 305s fit them without fouling.