I have run these times. The ? Ones have glitch times in the #1 spot so I can't tell if mine are the fastest or not.
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Donnington park gp 1:14.435
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Donnington national 57.161 ?
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Hazyview eight 14.747
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Hazyview oval 11.122 ?
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Miyatomi 10.474
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Monza gp 1:24.351
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Silverstone international 1:05.800
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Silverstone bridge 1:23.060
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If I set any more I will add them to this list.