View Single Post
Old 08-25-2012, 03:01 PM   #54 (permalink)
aerohead
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,279
Thanks: 24,401
Thanked 7,368 Times in 4,767 Posts
Rooflines

When thinking about the back of the Beetle I was thinking that you might consider the differences between:
*Beetle
*AUDI TT
*Porsche 911
*Porsche 911 GT1 (1996)
When extreme performance is critical the solution is partly found in fineness ratio.
Compare the New Beetle,at L/H=2.56
the Porsche 911 GT1,at L/H=3.991
---------------------------------------------------------------------------
If the entire back of the Beetle were filled in up to the 'Template',you'd have the potential for Cd 0.314.
At say the old double-nickel speed limit,if you were getting 30 mpg,you'd be looking at 32.6 at factory length.
  Reply With Quote