“Odometer or mile markers and a stopwatch or clock with a second hand. “
Burying the tack doing 10,000 rpm with an engine that could only pull 6,400 rpm on a public road doing 190 on a buried speedometer on tires not rated for that speed ...
I call bs.
I’m not verifying anyone’s story, I simply explained HOW you could determine speed without a speedometer’s help.