I really can't tell by looking at them, but the profile of the snow tires on them aren't much bigger than the pilots I have on the regular rims. You aren't supposed to go up or down more than an inch I was told, supposedly it's bad for your abs system/speedometer etc.<P>So I think they are 16"-ers
There are 15-inchers and now 16-inchers available for the cars (16-inchers are needed on the S80 and maybe new generation V70 S60 now also). <P>Just check the sidewall for the tire size. Also, how many miles do you think are on the tires?