I can't say enough good things about these tires...cornering at over 108mph, braking, steering response...traction...everywhere.
They sit on a set of 17in Silver OZ Racing Ultraleggeras for track days along with H & R race springs, over 240HP, etc.
I got over 30,000 miles on these tires while flying. Air pressure was between 37.50 and 38.00 along with tire rotations between 3000 and 5000 miles on the street.
They are even reasonable in light snow and cold weather...but I don't recommend it, especially if you have a high horsepower or heavier vehicle than 2200 pounds and only if you don't have a spare set of High Performance All-Seasons like the Michelin Exaltos that I do have in case we do get a real snow fall in Chicago.
Take care of them and they will take care of you! I just purchased my second set a few weeks ago.