What is on the windshield of NASCAR?
The windshields on NASCAR race cars are made of Lexan, which is the same polycarbonate material used on fighter-plane canopies. This material is very strong, but also surprisingly soft. This softness is actually what gives it its strength. When an object hits the Lexan windshield, it doesn’t shatter it.
When did NASCAR add wipers?
Back in 2015, a handful of teams started running the wiper blades regardless of the weather, leading to speculation that it provided a competitive advantage.
How thick is a Nascar windshield?
This windshield had an actual thickness of 0.236 inches and was a solid monolithic polycarbonate extrusion. Flat planks of polycarbonate were then formed, coated, trimmed and drilled for use in NASCAR. For the purposes of this paper, this 2000-2012 monolithic windshield will be referred to as the baseline windshield.