Tesla was going to call the "Model III" the "Model E"
Elon Musk originally wanted to call the Model 3 a Model E, unfortunately that didn't happen. Read on:
Founder Elon Musk had cleverly wanted to name this car the E, so that the acrostic of his models could spell S-E-X. Ford, alas, didn’t take to Musk’s style of humor and, according to him, threatened to sue Tesla over naming rights. Apparently Ford thought the name was too close to its naming scheme for the admittedly important-to-automotive-history Model A and Model T.
“Ford tried to kill sex,” Musk joked at Tesla’s 2014 annual shareholder meeting.