One last update...
It occured to me that if you do what i did you will need to remember the following:
1. The new bulge lug nuts use a different size lug wrench than what is in the trunk
of your metro, so you need to carry the proper size in case you have a flat.
2. If you have a flat, it would be a good idea to have 4 of the old lug nuts to
match your old spare.