Why you should not speed...

The video below provides a very graphic depiction of why you should not speed: the amount of distance that it takes to stop a vehicle increases with the square of the speed.  That means that if you double your speed, it takes four times as much distance to stop.  In the video, two vehicles are traveling side by side at slightly different speeds approaching an obstruction in the roadway.  An important note: this video was produced by a researcher at Monash University in Australia; so they are talking about kilometers per hour rather than miles per hour.  One vehicle is going 60 kph (roughly 37 mph), the other is going 65 kph (roughly 40 mph).  When the narrator talks about "five k's" of difference, that is a difference of just three miles per hour.