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Ooh, very nice. It makes consumers aware of important parameters they wouldn't otherwise know about. Even if the system is never adopted outside the EU, it will create awareness of Crr. That alone will drive innovation.
But they should have made A the worst and G the best, giving themselves room for expansion. Tires are only going to get better, and 15 years from now, we'll have to choose between AAA rated and AAAAAAA rated tires. Or worse, they'll all be A rated.
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