Hey guys, I remember reading a thread on this forum regarding supercharging speeds, and most were reporting between 250 - 350 mi /hr (Beware: Supercharger speeds vary greatly | Tesla Motors). To my surprise, this weekend at the Greenwich Supercharge in RI, I was the only Tesla there and saw 420mi/hr! I was around 35% SOC (S90D) when I started charging. Later I was at the same charging station with a couple of more Teslas in the other stalls and saw a more "reasonable" 280mi/hr. But it's crazy to know that they have the potential to charge that fast!