It's not just a single drive-through window either, even in small towns in the US there will be multiple lanes at the bank drive-through, with pneumatic tubes to send your money and documents from the car to the inside of the bank [0]. When I was a kid, I loved watching the container get sucked through the tube, plus they'd usually send back candy with the receipt.
[0] https://www.youtube.com/watch?v=Y5pVJ8ID0DQ