Without looking it up first..... out of these 2 cars which one has the lower drag ? Image Unavailable, Please Login
From literature: Aerodynamic drag coefficient = Cd or Cx or CW Cd = is the drag coefficient D = is aerodynamic resistance (dimensionally a force) = is the density of the fluid S = is the reference area V = is the speed module of the body with respect to the undisturbed fluid. Ferrari 550 Cx = 0.33 Maserati Granturismo: until 2018 Cx = 0.33 from 2018 Cx = 0.32 Patically the two cars have same drag coefficient but for compare the total force D are necessary to know the cross area of the two cars ....
Exactly! This is something that needs to be considered, an old VW bus has a better Cd value than say an E-type or a Ferrari 275 GTB, BUT a much larger cross section and as a result the total D value is significantly higher, thus the amount of power required to keep the speed at 100km/h, 100mph or higher gets bigger, IIRC it gets bigger in square related to the increase in speed. Or exponentially anyways.
Given that the Maserati have the same engine and transmission ratio AND drag as my 2002 Maserati 4200, the 550 is still more efficient when it comes to consumption. The V12 550 burn less fuel.
