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.
Found in the wheels weights of the car, lead is used to keep the cars tires balanced while driving. They can often be take off from the aluminum rims and sold separately for scrap. Also the battery inside your car is lead-based and can be quite heavy, so be sure to scrap those separately, without taking them apart.