Forget Kumho... quality control is not good... You get what you pay for is
the key. If you want summer performance tires, then go for Bridgestone
RE750... you will get 45,000 miles max out of these set...
The key is the treadwear rating...for every 100, it is 15,000 max.
Now, if you go racetrack, forget it... it is out the window on treadwear