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The term drag area derives from aerodynamics, where it is the product of some reference area (such as cross-sectional area, total surface area, or similar) and the drag coefficient. In 2003, Car and Driver magazine adopted this metric as a more intuitive way to compare the aerodynamic efficiency of various automobiles.
Drag coefficients in fluids with Reynolds number approximately 10 4 [1] [2] Shapes are depicted with the same projected frontal area. In fluid dynamics, the drag coefficient (commonly denoted as: , or ) is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.
Rear view Interior. When production of the Hyptec GT begins, it will have the lowest-ever wind resistance coefficient of any mass-production car at 0.19 cd. The GAC research and development team used aerodynamic design cues featured in previous concepts such as the GAC ENO.146 and TIME to achieve the low drag coefficient of the Hyptec GT.
The lowest of the three cars' drag coefficient was 0.19, [2] an achievement even by today's standards. For each of the cars, Alfa Romeo provided a five-speed gearbox and a powerful four-cylinder engine that produced more than 90 horsepower (67 kW), good enough to propel the car to a top speed of 125 mph (201 km/h). [3] All three original BATs ...
According to XPeng, the development of the vehicle was focused on reducing drag on the car. XPeng claims that the model has lowest drag coefficient among the world's mass-produced fully electric hatchbacks at Cd 0.194. The Mona M03 underwent 10 wind tunnel tests of more than 100 hours each, which shaved off Cd 0.085 from the wind resistance ...
The Audi A2 1.2 TDI had the lowest drag coefficient of any car in the world at the time of its launch. [18] It was also one of the most economical and least polluting, only emitting 81 g/km (German emission standard D4) to 86 g/km (D3 emission standard) CO 2 emissions.
The design emphasizes mainstream rather than exotic materials, extreme low weight (less than 450 kg (1000 lbs)) and very low aerodynamic drag (coefficient of drag <0.16). [4] Significant design innovations include in-wheel suspension and safety design derived from endurance auto racing.
The aluminum body was built by the Ludewig Brothers of Essen. Subsequent tests of the motorized model showed a slightly higher but still impressive drag coefficient of 0.186. [2] The Schlörwagen was built on a modified chassis of the Mercedes 170 H. The wheelbase was 2.60 meters, the vehicle was 4.33 meters long and 1.48 meters high.