So the '07 Element SC finally needed new tires after the factory tires made it 80K miles. My buddy owns a wheels/tires/accessories shop and recommended I give the Kumho Road Venture ATP KL51s a try in the larger 235/55-18 size. I was shocked how much smoother and and more quiet they run. Major upgrade, I recommend you 18" SC wheel owners consider them when it's time to upgrade. Also, a nice bonus is now the speedo is dead on to the Garmin GPS.