Several weeks ago I placed a Tire Rack order for the 20” Michelin Pilot Sport A/S 3+, on back order through mid-August. Checked status yesterday and saw that Tire Rack has just started offering the newer 20” Michelin Pilot Sport A/S 4 with immediate availability.

Switched my order to the A/S 4's. Looking forward to removing the Pirelli P Zero run flats.

Anyway, just an FYI regarding 20" availability.

Please let us know about your experience with these tires. Interesting that they are an option on the new Corvette. Thinking about them for my S560 when time to replace tires.

I found this video on youtube, I think he is one of the few that actually compared these tires.

Just installed (Costco) a set on my '11 Lexus LS460 and couldn't be happier. Very quiet, smooth providing a great ride. Plus they came with a 45k mile warranty.

Great I guess these are what I'll go with when I need tires although the Continental SSR Run Flats that came with the car are holding up better than I thought they would have 12K miles on them already and look to be about half warn so probably will get over 20K miles on them meaning around another year or so. I looked in the specs for the ZP All season 4's but not available in the size my 19's take so I'd have to go with the non run flat version, probably not a bad thing as I'm sure they ride better than the run flats. Although I will say with the Continental SSR Run Flats the ride has not been as bad as I'd thought it would be for a run flat.

Please let us know your thoughts once installed! I assume you are going with 245/40-20?

Also from my experience with Michelin, if the tires cannot be rotated (as in staggered setups) the warranty is cut in half to 22.5k miles.

Just adding they will go on my '16 S coupe once these garbage run flats wear out.

Yes, 245/40ZR-20, 275/35ZR-20

Also, don't really care about the mileage warranty, was just ready to remove the RF's.