BMW of North America is recalling more than 318,000 vehicles in the United States after identifying a defect involving the starter on certain 4-cylinder engines. According to the recall information, the starter can fail, and in some cases it may overheat or catch fire. The reported scope covers 9 BMW models plus the Toyota Supra. The recall is described as affecting a total of 318,495 vehicles, and it is linked to an increased fire risk stemming from the faulty starter component. The sources do not indicate widespread failures, but they characterize the fire risk as rare and tied to starter malfunction. BMW is conducting the recall as a safety measure and is expected to provide remedies for affected vehicles, though the specific repair procedure is not detailed in the provided excerpts. Overall, both sources agree on the cause (a starter defect in 4-cylinder engines), the consequence (failure and, in rare instances, fire), and the approximate number of vehicles involved and the model coverage in the U.S.