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The 25 was one of the first cars designed from the start for aerodynamic efficiency giving a drag coefficient (C d) of 0.31, a key factor in improving fuel economy. The TS model briefly held the unofficial title of "world's most aerodynamic mass production car" with a C d of 0.28, and at its launch, the 25 was easily the best in its class for ...
Drag is a force that acts parallel to and in the same direction as the airflow. The drag coefficient of an automobile measures the way the automobile passes through the surrounding air. When automobile companies design a new vehicle they take into consideration the automobile drag coefficient in addition to the other performance characteristics ...
Mercedes-Benz reported a drag coefficient of 0.19; [7] for comparison, the production vehicle with the lowest ever C d value was the GM EV1, at 0.195. While the Bionic had a much larger internal volume than the EV1, the Bionic's larger frontal area made the EV1 more aerodynamic overall, as drag is a product of the area and the drag coefficient.
In most high efficiency models or in vehicles with low drag coefficients, a very small grille will already be built into the vehicle's design, eliminating the need for a grille block. The grille in most production vehicles is generally designed to maximize air flow through the radiator where it exits into the engine compartment.
The car includes a mix of active and passive aerodynamics to improve drag coefficient values over the F12berlinetta. The front of the car is designed to increase downforce and includes intakes for front brake cooling, as well as ducts to increase underbody air flow.
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.
The aerodynamics gave the best drag coefficient of any vehicle at the time. [citation needed] On its launch, its main competitors in Europe included the Fiat 128, Ford Escort, Renault 6 and Vauxhall Viva. The GS's aerodynamics enabled the car to make the best of the available power, but when introduced, the car was considered underpowered.
The newer Z-car had a drag coefficient of 0.30 and was powered by Japan's first mass-produced V6 engine instead of the inline-sixes of the previous Z-cars. According to Nissan, the new V6 engine was intended to uphold the sporty, six-cylinder spirit of the original Fairlady Z, but in a more compact and efficient package. [4]