Richard Symons recently took his five-year-old Tesla Model 3 on a 260-mile road trip across England without having to stop for a charge.  A new electric vehicle could make the trip no-problem. But Symons’s car—which he has affectionately nicknamed “Miles”—has logged 247,000 miles and is still up for frequent long-distance drives. Symons, the owner of a U.K.-based used-car sales company that specializes in EVs, has found that the batteries that power these cars continue to perform well even after several hundred thousand miles. This has come as a welcome surprise to him and other EV enthusiasts. “They are proving themselves…