Racing car windows are designed to be lightweight and aerodynamic, to reduce drag and increase speed. They are typically made of polycarbonate or acrylic, which are both lightweight and strong materials. These materials are also shatterproof, which is important for safety in high-speed racing situations. Racing car windows are often tinted to reduce glare and improve visibility.

Classic car windows, on the other hand, are designed to be more aesthetically pleasing and in keeping with the style of the car. They are usually made of tempered glass, which is more resistant to scratches and chips than regular glass. Classic car windows are often curved or have intricate shapes, which can make them more difficult to replace if they become damaged.

Both racing car windows and classic car windows are important for their respective purposes, and proper maintenance and replacement is necessary to ensure the safety and functionality of the vehicle.