What size are the rims on a 98 BMW 318i?

I've been told they are 16". But I was then told, since I use 205/60/15 tires that my rims are 15". I need to know since two of my rims are bent and need to be replaced. Would a 93/94 BMW 325 have the same rim that could be used on my vehicle? And finally, is it possible to use a torch and hammer the dents in the rim back into place, or is that not possible because of the aluminum alloy build? Thanks in advance.