My Yokahamas are NOT run flats; nor do I want ‘em. Summer tires would be just fine. Looking for a comfortable, quiet ride.

 

the Pirelli P Zero RFT are unbelievably comfortable, dreamy rides compared to my
oem 'stones ; and when these tires heat up, you quickly feel why they're oem on many ferrari, 911, amg's, etc.
they're reputed to not last too long, but i dont really drive that hard.
a beautiful italian tire; on the F1 from vegas the other night, the Pirelli P Zero banner was prominent.

 

Surely the S5's will be a marginal improvement to the PS4S's as the PS4S's were to the PSS's. I just replaced my PSS's to PS4's and frankly it's very difficult to tell the difference, unless you're driving the vehicle hard on backroads or on the track. Most of us will be driving our LC's during regular commutes with the occasional backroad Sunday drive. I just released a video on my "upgrade" from PSS's to PS4's.

 

Thanks for the info on the Pirellis. Sadly, Tire Rack doesn’t seem to carry them.

 

Forgot to ask, but I assume stock wheels. Stock wheels are IIMO a bit narrow I would recommend the Michelin PS4S in 255/40/21 in front and 285/35/21 in back. These sizes are new to Michelin for this tire. They are available at Rite Rack, so your local tire shop should have 'em.

 

What are the offsets of your 21x9.5 & 21x11.5 wheels? They seem to fit well.