I drove a 1951,six cylinder Henry J with no overdrive,1846 miles from El Paso ,Texas to Goldsboro N.C.. Never once was I scared. There was no speed limit in west Texas and I routinely drove 65 M.P.H.,accelerator flat on the floor during the west Texas portion, on roads that would be condemned today,no interstates then!
In addition the scary J made it without incident. A friend who was driving a 2 year old Oldsmobile along with me on the trip ,was not so lucky. He burnt out his voltage regulator and had a shock absorber to tear loose from it's mount.
The trip would have been a lot faster except we spent a lot of time driving the scary J around looking for parts for the Oldsmobile.