Hertz, which started with a fleet of a dozen Ford Model T’s a century ago and became one of the world’s largest car rental companies, filed for bankruptcy protection on Friday after falling victim to its mountain of debt. The coronavirus pandemic has devastated Hertz by grounding business travelers and tourists, making it impossible for the company to continue paying its lenders. A sharp drop in used car prices has also decreased the value of its fleet. “They were doing quite well, but when you turn off the revenues and you own all these cars and all of a sudden...