ToplineFord and Mazda on Tuesday warned the owners of more than 457,000 older cars to stop driving them because they are likely equipped with recalled airbag inflators that could explode when deployed in a crash, a defect regulators said has affected scores of automakers and killed dozens of people in the U.S. over the last decade.The airbags have killed at least 27 people and injured hundreds of others in the U.S., regulators ... [+] said.AFP via Getty Images Key FactsThe “Do Not Drive” advisory covers car ...