Which product recall holds the Guinness World Record for the largest automotive recall in history?

Product recalls are sometimes necessary to protect consumers, but some have been so massive they've broken records in the business world. These large-scale recalls have affected millions of consumers, cost companies billions of dollars, and sometimes even changed industry safety standards forever. Test your knowledge about the most significant product recalls in history and their impact on both businesses and consumers.

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Takata airbag recall (affecting over 100 million vehicles globally)
GM ignition switch recall (affecting approximately 30 million vehicles)
Toyota accelerator pedal recall (affecting approximately 9 million vehicles)
Ford Pinto fuel tank recall (affecting approximately 1.5 million vehicles)