Working with tires, I have seen some pretty crazy tire stretching. I run 205/40/17's on 7.5" rims and like the look, the side wall is even with the lip of my rims. I think the most common size for euro lookers is 205, some use 215's. I think it is a personal preference as to what size tire you want to run on what size rim, so put em on and see how they look
