I have a set of 16" Fuchs 6 & 7" rims I want to use on my 68, it's more of a hot rod so no worries about originality. I want to stay with a narrow staggered set up, since the 1" difference in wheel width is 25.4mm it seems that 185 in the front and 205 rear would give a similar side wall stretch or bulge. Hankook make what looks like a nice tire in the 185/55/16 and 205/50/16 sizes in their V2 H437. The exterior total diameter would be 612mm rear and 610mm front so a nice match but a little small overall. So the question is, is 610mm way to small or will it look nice on a SWB.