not a 15", but it should give you a rough idea. 18x9.5 +18 test fitted to front and rear on my 23.
rear fits well clearance to both the guard and wheel well. but not on the front.
Normally the front has 16x7 +12, that leaves about 10mm to the strut and fills the front guards nicely. ( i have crown front hubs)
Hope that helps
Cheers Mike
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