I just replaced all four Hankook Ventus V12 evo K110 tires after 16,400 miles. The back tires were down to the wear bars and were pretty evenly worn. The front tires still had a good amount of tread on them, but I replaced them anyway. The new tires are Michelin Pilot Sport A/S 3. I also had my OEM wheels refurbished and they look great.