Have you ever used Garmin nRoute software? The trip computer tab can give you some useful statistics about your trip. I challenge anyone to match my Max Speed statistic shown in the image below. The image was not Photoshopped, I really hit 907 miles per hour while I had my Garmin 60CSx and nRoute running, but it wasn’t in a car. Some of those numbers were recorded during a plane flight (I don’t remember the aircraft type or where I was going). I thought it was worth sharing because I had to do a double-take as I was driving down Interstate 30 and I didn’t remember breaking the speed limit that badly!