-ve camber, arch work, tyre stretch you may get them on, not sure it will drive too well on them though. Probably best to find some wheels which fit the car unless you like the wide wheel/low offset look?
15x8 +25 rubbed on my EK4 that is lowered but no camber adjustment on 195 tyres. 185s and camber and they would have been fine. Not sure if a +15 would though and I have no idea whether them being 16s makes any difference.