Quote:
Originally Posted by Hersbird
Vman, I would question those numbers thrown around by Ram and the journalists. The guy delivering the truck to a media event or standing by it at the car show probably gets a few things wrong as does the journalists taking notes.
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Straight from the horse's mouth:
2009 Quad Cab:
"The cooperative application of aerodynamic science and innovative styling led to aerodynamic improvements on the new Ram that resulted in an estimated coefficient of drag (Cd) of .422 for a crew cab 4x4 model – compared with a Cd of .463 for a 2008 Ram Quad Cab® 4x4."
2014 Quad Cab: Chrysler's 2014 Ram press kit--as well as the press kit for every subsequent model year up to 2018--says,
"Best-in-class aerodynamics, coefficient of drag (Cd) at 0.360."
I don't buy an argument of communication error with journalists (in this case) when those are the numbers FCA actually published. Yes, the differences are very subtle, but that's kind of the point here. Those subtle differences account for a range of more than 60 counts in the drag coefficient, or more than 100 counts comparing the 2008 to the 2014!
Try another one: 2019 Ram 1500.
Answer:
Cd .357
To get back to the original question: it is
impossible to say just by looking what the difference in the drag coefficient of two trucks is.