I honestly never understood how being 4 times safer than the average car in use is supposed to be especially good. I'd assume the current car fleet includes a huge amount of older, cheaper and smaller cars which usually also means they have less safety features. No, that doesn't mean i say or want to imply that Teslas are especially unsafe. But i can't wrap my head around the figures and bring myself to believe it's the safest car around. At least when it comes to deadly accidents this simply doesn't seem to be true. I mean it's completely understandable that more accidents happen, given Teslas are damn quick and fun to drive. The following link contains a list of cars that seem to be relativly safe in that regard, if you scroll down to the part about "Lowest rates of driver deaths".
http://www.iihs.org/iihs/sr/statusreport/article/52/3/1
It shows several cars having 0 deaths per "million registered vehicle years". I believe Tesla has sold something around 300.000 cars over the last years. More in the last 2 or 3 years than before, so altogether registered vehicle years should be in the range of 1 million years. There have not been 0 deaths.
So how does building the safest cars on the road (citing crash test data) translate into being 4 times safer, when it comes to deadly crashes and another dataset shows others cars are safer in that regard? Either a piece of the puzzle is missing or one of the datasets is flawed, but that doesn't really make sense. Probably i'm just stupid again and missing something ...