Try this site for comparison of different Porsche factory (and a few aftermarker) rims, click wheels for pictures of fitment on different models,
Seems to cover everything EXCEPT weight!:(

Search Wheel Enhancement for Porsche Wheels and Accessories

they are only 17's I can check the offsett if you want They have 225/45 and 255/40 on there

993 Rims
 

Hey DougM, Boy, the suggested price of $43,000 for the rims on that black 993 are sweet and would look great on any 928.

Once you've been behind the wheel for a few miles, those Porsche Turbo's feel great on the twisties up through the Rocky Mountains - especially with the optional sport seats. I did find that it can be a bit of a struggle getting in and out of those things for anyone without a skinny butt.

Nice Ride, Michael :)

will these fit
 

I am looking at some 17 x 8" with a offset of 58. Will these fit on a 1979 928?

I heard anything with at least a 55 offset will work. Although someone please confirm or deny this.

Great!! Thanks MPDano. I need to get these phone dial wheels off asap.

Awe, I love PD's. Got 'em on my 81 Euro.