How about having an new forum that contains two photos (a closeup photo of a wheel and full shot of the Z with wheels) by manufacture and model with sizes and offsets. This could be used for researching what wheels look good on a 300ZX and all the particular metrics people ask all the time.
This forum code pattern could then easily be duplicated for forums for stolen cars, classifieds or anywhere you want to match a couple of photos to a topic and some metrics.
