Took one of those out on the Kansas Turnpike and buried the speedometer.
Got her up to 73 mph, eh? Which went faster, the car or the car’s fuel gauge?
My parents were straight GM buyers and I am certain their cars got an average of 8 miles per gallon.
In 1976 I drove a ‘65 Bonneville on its last journey, across Eugene, OR to a wrecking yard outside of town. Nobody else would drive it because it had no brakes whatsoever, which made things interesting.