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Well, their low-speed coastdown test is pretty representative of CRR, and it looks like they've achieved somewhere around a 30% improvement over the already-good Hakkapeliittas, which are in turn 30% more efficient than the stickiest "LRR" tire Nokian could find.
It's crazy that a tire that came out over ten years ago (the original Insight tire) is still the most efficient passenger car tire out there. I hope the new Nokians have lower RR than it, and that they come out soon in a narrow, 14" size.
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