| The profile on the 208GP's is harsher for a start, and will turn a lot quicker, plus I think the tread pattern of the 207's runs pretty much to the edge of the tyre, whereas the 208GP's and 207GP stars don't.
GP's are stickier, but do need heat in them, which to be fair most tyres do, life time will be reduced, personally I prefer grip to durability | 
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