Mexicans who have no Indian blood would still be classified as Hispanic, a race classification that is not genetically determined. Be careful though, lumping all Native Americans is one huge group is not being very respectful of them.
Lead wheel weights have been banned in the EU since July 2005, and Japan and Korea are phasing them out. Yet EPA has refused to enact a ban, instead relying on voluntary industry action.
However, if any work is done on a car's tire(s) that requires an old lead wheel weight to be removed or a lost wheel weight to be replaced, or if a lead wheel weight falls off in the process of working on a tire, the old lead wheel weight cannot be placed back on the tire.