In the car body and main parts, which is the most important security of the car, the windshield is one of the main parts, which is explained here in some detail.

In older cars, the windows went up and down manually with slight pressure and in rotation. This was done through the handles. The handles break and the windows cannot be opened or closed. In some cases, the driver had to open and close the windows manually while driving, which could reduce his concentration while driving. Replace it so that the driver and passengers can easily move the glass up or down by pressing the keys on each door.

Increasing the security of the car as well as the ease of opening and closing the car windows caused all car manufacturers to use this part in the construction of cars.
But it must be taken into account that mass production of this high quality part in terms of durability and customer satisfaction is a very difficult task.