I have the PS2, non-run flats 345's. I found out below 70 degrees, the tires do not grab until warmed up. I don't think they make PS2 runflats in the 19" 345's yet. I have a tire patch, fix a flat and compressor so I am not worried about a flat tire. Plenty of tires are more sticky than the PS2, but they also wear out quicker and also suk in the cold weather.
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08 C6 Z51 Coupe with TVS2300, a little more than stock HP/TQ.
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