I do!

In the '60s and earlier, it was common for cars to have wing vent windows you could open and cant outward to direct airflow into the car. This made it doable to go without expensive AC. In addition to the money you saved up front, the car was a lot lighter (AC adds as much as 100 pounds to the weight of the car) and so performed better and got better gas mileage, too.

Beginning in the late '60s, wing vent windows began to go away.

By the '80s, they disappeared completely.

Without them, AC is almost a must-have feature. I suspect that wing vents were eliminated in part for just that reason - to push people into buying AC, which is now a de facto standard in almost every new car made...