...And as for your signature....I'm an Adam Henry...:lol:Given two equal drivers in a straight line, then the C5Z would win of course.
But no two drivers are alike, and when you talk about "fast," hopefully you don't just mean a straight line. I've seen C5Z's overtake C6Z's on the racetrack, just like I've seen C6's blow away turbo-charged C5Z's.
Who's fastest? It just comes down to how good a driver you are.
Try it on the track, you'll see what I mean. Tread squirm and physics of the tires contribute to a less connected feel.I respectfully disagree with the "squishy" RFT comment, too. Why would a stiff sidewalled runflat have squishy tread per se? If anything, the non-RFT would have a softer sidewall, and thus feel more "squishy".