TY everybody for your replies. I learned a lot. Unfortunately, I do not live in a house, so I can't wash the car myself. But I like to keep my cars clean. I also did not know that there were many places on the C8 where water gets trapped on the car.
I love your video--very helpful. I did not know that so much water enters the engine compartment. I wonder if there is a car wash accessory you can buy to temporarily block the water from coming into the engine bay. Your car looks awesome too!