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Old 07-07-2008, 11:34 AM   #5 (permalink)
X-Frenchy: very
groar's Avatar
Join Date: Jun 2008
Location: Toulouse, France
Posts: 595

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

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

dennisius - '06 Toyota Prius
Team Toyota
90 day: 69.27 mpg (US)
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I think I saw it through a link someone posted recently.

I bet for a GPS receiver hardcoded with generic values. The GPS receiver gives not only the position, but also the speed and the acceleration.

A few weeks to design, a few dollars to build and you can sell 50. Will pay for itself rather quickly even if people save only 10%.

Far less powerful than a SG, but will be enough to a lot of people. With a SG you have to analyze numbers in real-time to know what you have to change... People do prefer something telling them what to do, or what they are doing bad.

Even if you only say people when they are accelerating too quickly or driving too fast, this is enough because that box is looking at it all the time. It's still hard to me to have always good accelerations and good speed.

People will not become hypermilers, but will meet EPA and will be happy to save money.

Save money & CO2 at home :
Created and managed by the creators of
Earth and health are priceless, so are kilotank and AT-PZEV
Best Mégane tank: 1268.9mi @ 77.847 MPG(US)
2008/06-2011/10 saving:
  • 5725.5 kg CO2 (5342.6+382.9)
  • Diesel / Money: 42.17% = 2446.25€ = 3357.26$

megane : thread - kill switch.
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