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I don't have personal experience with the ultra sticky type of tire but I know that Dunlop Star Specs seem to be a popular performance tire, and it seems that owners are happy to have them last anywhere near 20k on the street. Supposedly, this is considered pretty good tread life for a performance tire, some other popular tires are claimed to wear down much faster. My car is currently wearing high performance rubber, pretty fresh rubber all around...previous owner said the rear tires get chewed up pretty fast, we'll see what happens. I don't drive much.
By the way, the old CBR250 which hit 19000rpm and had carbs and distributor supposedly got 94mpg rolling along at 37mph, says Wikipedia. Not bad for a similar power to weight as an E46 BMW M3 with a light rider.
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