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Old 09-13-2008, 06:59 PM   #2 (permalink)
groar
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Join Date: Jun 2008
Location: Toulouse, France
Posts: 595

scenic - '01 renault scenic
90 day: 43.09 mpg (US)

megane - '97 renault megane classic
Diesel
90 day: 72.53 mpg (US)

dennisius - '06 Toyota Prius
Team Toyota
90 day: 69.27 mpg (US)
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Quote:
Originally Posted by groar View Post
Here are the characteristics I could found (megane / HCH II) :
[...]
Cd : 0.32 / ???
FA m² : 1.99 / ???

I can't find HCH II's Cd & FA. If it's better than megane's one then very little can affect the aerodynamic.
From Automobile drag coefficient - Wikipedia, the free encyclopedia and many other pages, HCH's Cd is 0.27. Not found the Frontal Area, the smallest CdA shown in this page for a Honda Civic is 7.04. With a Cd of 0.27, this is a FA of 26.1 ft² = 2.42 m². This is a lot so it must be a previous Honda Civic with a Cd of 0.31, which corresponds to a FA of 22.7 ft² = 2.11m², closer to my megane's FA of 1.99m².

Whatever the FA, a Cd of 0.27 for such a little difference with my megane which has a Cd of 0.32 is astonishing to me.

Denis.
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Best Mégane tank: 1268.9mi @ 77.847 MPG(US)
2008/06-2011/10 saving:
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