Apparently, Tesla Model S owners like to hit the road quite often. The electric car maker has revealed that Model S drivers have collectively notched up more than 1 billion miles, or enough usage to prevent over 570,000 tons of carbon dioxide emissions over the EV’s three-year history. Is this marketing hype? Absolutely — we’re sure that conventional car brands wouldn’t even blink at that milestone. However, it’s evidence that Tesla is growing up as a company. It’s an established (if small) presence in an industry where electric cars still tend to be treated as side projects, rather than the main attraction.