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.
Lead weights. These come in a variety of sizes and styles depending on the type of wheel or manufacturer of the vehicle. Dodge vehicles for example take one type of weight, Fords another. If you have problem with wheel balancing take it to the people with wheel balancing machine and it will only take a few minutes. For your information the weights are lead.