LOL, I'm dating myself for sure!!    But I actually remember going to such places.  I loved going and being able to just park and order what you wanted and have it brought to the car by people on roller skates,  on a tray that hung on the window.

The last A&W where I live that was like that changed to a sit in restaurant with drive through about 15 or 20 years ago. 

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi