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In the early days of racing, drivers would typically race their cars just as they bought them from the dealer. This type of car is considered stock. Today, these 'stock' cars, contain very little of the original vehicle found in the showroom. Modifications are made to enhance the speed of the racecar and to make them as safe as possible. A racing stock car has no headlights, no door handles and no side window glass. Even though the majority of each stock car raced in NASCAR is specially designed for racing, they are still considered 'stock'.