Quote:
Originally Posted by devo
That's the question, isn't it? Did the M run on PS2 or Cup tires? If it's the latter, (imo) the test isn't fair. If it was the former, then kudos +10 to BMW. Give the C2S Cup tires and it will likely run closer to 8:00 or below. Add the hp bump AND Cup tires and the M won't even be close. By the time the M hits the states, the facelifted C2S will have the addtional hp.
In the meantime, it appears that the M bested the P car, which was equipped with street tires, while the M ran race tires, which are not DOT approved for the street.
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There is no evidence the tires are not approved for the street.
If the tires are available as an option, then the test is fair. To use a "benchmark" tire for all cars is an interesting idea, but not practical for many reasons, including continually advancing technology.
If to make it fair, the Porsche has to use the exact same tires as the M even if the tires are not available from Porsche, then what else should be the same for comparison purposes to ensure fairness? Do both cars have to use the same brake pads also? The M cannot be obtained with ceramic brakes. To be fair, should the M get Porsche's brakes while the Porsche gets the M's tires?