How much temperature difference can a windshield withstand?

[ArcherAnn]

Ordinary glass is doped with corresponding impurities according to different needs, with relatively low silicon dioxide content, generally withstanding temperatures up to 600 degrees. Characteristics of automotive windshields: Car windshields are typically made as a single-piece, large-curved surface with certain curvatures on all sides. This curved glass represents a product with extremely high technical requirements in terms of both manufacturing process and assembly fitment, as it involves multiple factors including vehicle model, strength, heat insulation, and installation. The reason why looking outward through car glass creates a speed reduction effect: Visual illusion. The variable people use to judge motion perception is not linear velocity but angular velocity (degrees of visual angle per second). Therefore, the more premium the car, the longer the front end tends to be, the greater the inclination of the windshield, and the farther the driver sits from the front end - making this "speed reduction" effect more pronounced.