At one time people were terrified at flying along at speeds faster then a horse could run. We now routinely operate our own vehicles at 75 mph so what is so magical about 100 mph. Safety has improved so much that people can and do survive crashes at speed in many accidents. NASCAR expects drivers to survive crashes at double the speeds we drive. With pre 1960 cars people died in low speed accidents.
We were just pointing out that 1: the interstate highways are built for higher speeds 2: if the vehicle has good aero it can be stable at these speeds (80 mph to 105 mph), and that such a vehicle would return much better fuel economy at these higher speeds then current cars and trucks.
If you want to be absolutely safe I would recommend you not drive or ride in motor vehicles at all. I certainly would not ride in any vehicle traveling over 55 mph. After that crashes where you leave the roadway typically involve more than a half million ft lbs of forces which have to be dissipated some way. Science can help us with this, unreasonable fears and a closed mind can not. I for one would like to be able to travel in my personal vehicle at greater speeds between cities reducing travel times. I would never suggest anyone who does not be forced to do so.
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