Helicopters pretty much rock. One of the downsides is they can be a bit slow. No more says Sikorsky! The Sikorsky X2 takes helicopter speed to the next level. This video was taken on September 15, 2010 and it is a test flight of the X2 where it reached 260kts during a shallow dive and 250kts in level flight.
Shoutout to the Seattle PI for this one.