Electric vehicles have quicker acceleration than gas cars, and the fastest ones can now reach the highest top speeds in the world. That helped make Tesla one of the strongest brands in the automotive world, and prove EVs were more than golf carts. But sales data and insiders — and even fans — say it isn't enough to sell them to Americans anymore. For a long time, performance was essential to legitimizing EVs to car buyers. It was essential to Tesla's pitch. "This kind of started when Tesla