Hyundai and Kia will overhaul security features in millions of vehicles as part of a sweeping multistate settlement accusing the companies of failing to install industry-standard anti-theft technology in many of their models. Under the agreement, the automakers must provide free zinc-reinforced ignition cylinder protectors to current eligible owners, add engine immobilizers to all future U.S. vehicles and pay up to $9 million in restitution to consumers and participating states, Attorney General Matthew Pla ...