I open the catalog of vehicles on one site and get lost in a huge number of proposals, vendors are fighting fiercely for customers by offering more and more new types of machines. But what is primarily for the buyer? Comfort and security! This is what builds the joy of the owner when purchasing a car. And of what constitutes safety and comfort? Every detail of the car brings its contribution to the cause. Here's an example of glass In the early 20 th century or a number of Paris newspapers do not get along without reports of bloody injuries which passengers horseless carriages, cut glass machine. Only to 1927 on the machines appeared safe laminated glass, but only the most expensive, only a few decades they have become the norm. Modern car manufacturers take responsibility for the safety of passengers and testing of glass in the enhanced mode, spending a lot of tests strength. And yet another glass protects against noise, ambient temperature, for this it is treated with special coatings. It's okay to withstand ice and fogging. Another function of the glass – to create a machine must be level of light load to save the driver from the sun and glare.