I'll save you some thread shredding.
It's a one and a half mile track , start to traps.
Starts with 1000ft of Concrete ,followed by almost 7000 ft of Asphalt, then 3000 ft Asphalt, 1000 ft of same concrete as start, then 1000ft of emergency grade (abraded)asphalt, then sandy soil, then Canada. If you stop over the border, you are on your own. Actually, it's about nine miles, due North, five if you make a right.
I conservatively estimate better speeds than Maxton, just don't assume the logic of 50% more distance, 50% more speed even if the vehicle has the power and can hook up.
You'd need crazy HP and Aero most vehicles do not have. But a few do.
Wait for the C.O.F. numbers to be made public.
BOB W #343 maybe a few do-er