If I keep "proper distance" between me and the car in front of me, and, if I am sober and driving "alertly", I can easily make a safe emergency stop at/from 65 mph.
"proper distance" is one car/truck length for every 10 mph.
I do not go over 65 on any road that has cars going/coming in both direction (with no median strip).
I will not tell you my one-time highest-speed on a 5 mile straight run on a country road (no other traffic in either direction).
