Hypothetical build questions…

Rat Bastid said
Really? The speed limit didn’t drop until the Carter administration and national disgrace didn’t start until 1977.

"On January 2, 1974, President Richard M. Nixon signs the Emergency Highway Energy Conservation Act, setting a new national maximum speed limit."

https://www.history.com/this-day-in-history/nixon-signs-national-speed-limit-into-law
Found one comment that Congress enacted a national 55mph speed limit in '72. Not sure what the difference was.

Later than I thought, no idea if or what the speed limits was before then. But not '77 either.

Just my gut, but I have doubts that people regularly traveled at 65-70 mph prior to the 55 speed limit. But just a guess.

Besides, the world was different then and the highways weren't even completed.

https://www.roadandtrack.com/car-culture/classic-cars/a26254/regular-car-reviews-ford-falcon/