The rim that came with the 15" space saver was probably the 5.5" steel wheel.
The 944 Turbo spare was the 15" x 5.5" aluminum wheel.
Not sure which rim size that came off the 16" space saver. But I seem to remember it was also a 5.5" width.
The Fuchs rim with a space saver mounted to spiff-up the trunk is most likely a 15 x 6" rim.
