I'd go with Juanca's recommendations and stay away with tires with soft sidewalls. From my experience, that includes Nitto INVO's (which I currently have on my F and can't wait to get rid of), Hankook EvoV12's (which I had on my Supra TT and HATED because it felt like the car was going to flop over), and the Continental DW's (which I drove on a Infinity G37 (and it felt similar to the Hankooks). If you drive your F like it's ment to be driven...like a high performance sports sedan, then you'll notice the soft sidewalls. I personally would go with the Michelin Pilot Super Sports, stock spec Bridgestones, or Bridgestone RE-11. Consider yourself warned against the above tires...Darshana S...

 

I'm running Michelin PSS 245/35/19 and 275/30/19. Not enough mileage yet to see what the wear would be but they feel significantly better than the stock PS2s in terms of grip. Ride comfort and noise are also pretty good.

 

Were your PS2's oem sizes?

 

^^ Yes, OEM sizes. The extra 2mm of rubber in the back would make a difference, but in this case the difference is drastic.

 

/\ have you noticed a drop in mpg?

 

There hasn't been a noticeable drop in mpg.

 

I saw this in the Oct. 2011 Consumer Reports magazine. The prices are for the 225/40R18 so expect to pay more.

 

I'm running 245/275 Hankook V12s and I have no complaints.