A muscle car site covering Tesla news in early 2016 might seem like an odd fit, but the numbers behind that quarter’s delivery report explain why it mattered. Between a battery fire fix, a width comparison that embarrassed full-size trucks, and delivery figures that finally quieted Tesla’s skeptics, the fourth quarter of 2015 turned into a genuine inflection point. Read on to see how an electric startup’s numbers stacked up against Detroit’s own performance obsession.