While the rate of growth may be slowing, EV sales hit a record 1 million last year as more and more Americans find them to be acceptable alternatives to conventional, gas-powered vehicles. But “charging anxiety” has become one of the key factors slowing EV growth, according to industry analysts. And a new J.D. Power study concludes that “Public charging isn’t just bad, it’s getting worse.” That said, most owners are ready to buy another EV when it’s time to trade in, especially those with the top-ranked BMW i4.