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Old 03-29-2008, 08:48 AM   #11 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,513

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 60.16 mpg (US)
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I wouldn't say the Civic and Focus are similar at all, aside from the fact that they're both hatchbacks. 3 major differences that stand out: the Civic has significantly more rear taper in plan & profile than the Focus, and its height is less than the Focus as well. The Civic's roofline also extends much further to the rear of the vehicle than the Focus.

If you're going to be skeptical of all published Cd figures, then your only solution is to do it yourself. Since you don't have a wind tunnel, you can figure it out via coast-down testing:

http://www.instructables.com/id/Meas...t-of-your-car/

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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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