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I'm running a 17x9 +65 in the rear and I see that there is a good estimated 1/2 inch of room available to go out further. 1/2 inch = around 12mm which would make it around +53 offset. +47 is not too far off, which means that it is not entirely out of the question and for sure not 10mm sticking out of the fender.
I calculated 7 and rounded to ten, cuz either way, it ain't going to fit right.
For reference, here's a car with 17x9.5 +55. A 17x9 +47, if you calculate it, will stick out 2mm more than this! Even if it somehow doesn't rub, it'll look like ass sticking out.