watch the white lines on either side, never a bobble.
don't know how fast it is going.
i know lots of good drivers, non of which could back a tractor w/o trailer
that straight. being towed would be my guess. what does it look like
if you run a film in reverse and film it.
After looking again i think the are 2 shadows, look at the guard rail.
their is a break at the top.