I'm as impatient and hurried as anybody out there. But I've trained myself to drive way farther back when I'm going 60 mph than when I'm going 45 mph. But the inertia doubles about every 10 mph speed increase. You need a LOT MORE distance to react and stop when you go 10 mph faster. I'm not going to tell you that speed kills, because it isn't really true.
Sudden stops kill.
Speed just increases the likelihood and severity of the stop. When you tailgaters drive into those steep downhill corners in a tight pack on Totavi Hill, you ought to be terrified. When you are tailgating me, I am. Remember, God helps those who help themselves. Maximize the distance all around your car.