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A fastback car has a roof that slopes constantly from the front to the rear, providing ideal aerodynamic properties. The design can be curved or straight, with varying lean angles. The Stout Scarab may have been one of the first cars to use this design. Fastbacks have a low coefficient of drag, making them ideal for sports and racing cars. Hatchbacks and fastbacks are often confused, but a fastback can be a hatchback and vice versa.
A fastback is a car with a roof that has a constant slope from the front of the cabin to the rear of the car. As the roof moves towards the rear, it gets closer to the base of the car. At the rear of the car, the fastback will either curve straight into the ground or come to an abrupt end. The design is frequently used due to its ideal aerodynamic properties. The term can be used to describe the design or the car designed in such a way.
The slope of the fastback can be curved or more straight, whichever is preferred by the manufacturer. The lean angle, however, varies from vehicle to vehicle. While some have a very slight descent angle, other cars have an extremely steep decline. The angle of the fastback is constant, it never breaks, until the card ends.
Although no consensus has been reached as to which car was the first to employ a fastback design, some have speculated that the Stout Scarab, produced in the 1930s, may have been one of the first cars to use such a design. Also billed as the world’s first minivan, the Scarab featured a roof that sloped gently and then sharply at the rear, resembling a teardrop shape. Other car manufacturers eventually caught on and began using similar designs before finding the ideal slope for aerodynamic purposes.
One advantage of the fastback design is its superior aerodynamic properties compared to many other automotive shapes. As any vehicle travels through a fluid, such as air or water, an opposing force called drag will develop as the vehicle’s speed increases. In other words, a car traveling through the air encounters resistance, which slows the car down and adds pressure, due to how the air bends around the car as the air passes over it.
Fastback cars have a very low coefficient of drag, which allows them to achieve higher speeds and fuel efficiency with the same amount of power and fuel as most other types of cars. The low coefficient of drag makes this design ideal for sports and racing cars.
Hatchbacks and fastbacks are often confused. A hatchback is any car with a rear windshield and trunk lid, or hatch, that are attached to each other and function as a single unit. There are often hinges at the top of the rear windshield that lift the hatch and window up. Many, but not all, fastbacks do use a hatchback design. A fastback can be a hatchback and vice versa.
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