After the Tesla Model S and Model S, there could have been a future Model E. It would have been Tesla Model S-E-X, but Ford killed the only vowel in the series. Why? Because Ford has already trademarked Model E. Tesla chief executive Elon Musk revealed to CNNMoney that he had wanted to name the planned third model -- a compact, battery-powered sedan -- the Model E.
But Ford managed to know of Musk’s plans and called him, saying that it might file a lawsuit for using the trademark. "And we're like, Ford's killing SEX ... that's terrible. So, OK, fine, we won't use the Model E," Elon said.
While Ford never built a unit using the Model E name, but it filed lawsuits to keep it away from other carmakers, saying that Model E sounds too much like Model T.
A Ford spokesman told CNNMoney that the Ford and Tesla had an agreement in 2010 wherein the EV maker agreed not to register or use Model E. He said that when Tesla later sought to register the Model E trademark, Ford insisted that it abide by the parties' earlier deal.