A 700-mile drive is exactly the kind of scenario that still makes some drivers question whether an electric vehicle can really replace a gas-powered car. That is why one Tesla owner's decision to head to Arkansas using only Tesla Superchargers, with no backup charging plan at all, is drawing attention. Here's what to know The trip, shared in a YouTube video by The Arkansas eTraveler (@TheArkansaseTraveler), follows a drive from McCaysville, Geor…