The Porsche zz body was designed to look like the new 996 twin turbo car.
Notice that the wheels that come on the Porsche zz are actually styled after the wheels that come on the current issue mustang cars. Now look at the wheels that come with the mustang zz cars. They are styled after the turbo twist wheels found on many new Porsche cars.
Looks like there might have been a mixup at the production head. I doubt anyone would care other than Porsche enthusiasts like myself but it's triva for those that are interested.
Best wishes,
Gary