Give It a Rest
The round button that you see on the floor below the parking brake is the headlight dimmer switch. Step on it once for bright "high beams," once more for dim "low beams." In modern vehicles, that function as well has been reassigned to a hand-operated lever.
I remember some old cars that had a second such button on the floor. This was around 1949, when I was a toddler riding in "Daddy's car" and (according to my mother's later recollection) helpfully reporting the changing colors of the traffic signals by calling out "Bop!" and "Go!" This second button activated the electric starter motor.
Back then, getting an engine going was a tricky operation. With one hand, you adjusted the carburetor mixture by moving a lever connected to the choke. Perhaps you also adjusted the distributor timing by moving another lever to retard or advance the spark. You threw a switch to connect the ignition system to the battery. With your right foot, you adjusted the throttle by holding the accelerator down partway. When everything was just right, with your left foot you stepped on the starter button to crank the engine, and it came to life (usually).
Nowadays, of course, the car's computer automatically sets all the parameters. With one hand, you turn a key to connect the ignition and activate the starter. No foot action is required. There's no starter button to step on.
Also note the thermometer-like display of the Safety Spectrum Speedometer. It magically changed colors! Below 35 mph, the visible line was entirely green; above 65 mph, red. This was achieved with a cylinder (something like this) turning behind a narrow window. As the cylinder rotated, more of the colored area appeared in the slit.
In later model years, Olds returned to the traditional speedometer with a dial and a pointer hand. But now there was a new feature: an additional hand on the dial, like an alarm clock. Theoretically, you set it to the speed limit. If you drove faster and the speedometer pointer passed the alarm pointer, a buzzer and warning light alerted you. (Most people set the alarm pointer to 120 mph.)
Another miles-per-hour-limiting innovation, introduced to General Motors cars in 1959, also works better in the empty spaces than in the suburbs. It has fared better over time, however. I'm referring to the device that automatically maintains a selected speed: cruise control.
At first people were reluctant to trust their driving to this gadget. It didn't seem safe to allow a computer to control how fast they were going. They preferred to operate the throttle themselves.
My father rather liked it for long trips, however, and he tried to sell the accessory to his customers. He pointed out that while you're cruising under cruise control, your can relax your feet because they have absolutely nothing to do. You are no longer required to keep a constant pressure on the accelerator pedal with your right foot for mile after mile.
As my father said, "You can put your foot in your pocket!"