Mark Wagner isn’t sure what he enjoys more: the looks he gets when he pulls his ancient Volkswagen ragtop into a EV charger parking space, or the looks he gets because of what he does next. Wagner’s car rolled off of a VW Beetle assembly line in 1962, the year Russian leader Nikita Khrushchev played nuclear brinkmanship with President Kennedy. But Wagner’s Bug no longer carries an upgraded, Cold War-era 40-horsepower engine and 12.5 gallon fuel tank. They’ve been replaced with a Curtis C-50 Brushless electric motor and part of an 85kWh battery pack scavenged from a Tesla Model S. “People see a…