"Hypermiling" is the practice of saving gas by driving conservatively. Practitioners accelerate slowly, coast wherever possible, and let physics do most of the braking for them. Ardent hypermilers can improve fuel economy by absurd amounts, wringing 62.7 mpg from a 25 mpg car, for example.
This gamification of fuel economy has led fanatics to create DIY aerodynamic modifications. Cardboard, plastic, bondo, duct tape and more are pressed into service:
I think these would actually make great Industrial Design student projects. Professors who believe in their students could offer up their own personal cars, and maybe save some gas money!
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This reminds me of the Aptera electric car which had a long pointy tail.
https://en.wikipedia.org/wiki/Wunibald_Kamm deserves better than this. Do these geniuses really think they can outsmart Toyota or Honda engineers with wind tunnels and every other tool needed to tame turbulence?
1. The reason so many cars have that chopped off tear drop shape is it's actually nearly as efficient as a full tear drop. These add-ons probably loose the efficiency they gain in aerodynamics to added weight.
Totally agree. Read up on Fuller's Dymaxion Car - he had the idea way back in the '30s, but it hasn't been acted on because it "was highly unsuitable for anything but low speeds" according to wikipedia.
Apparently this comment system just allows one link per reply. The simpler approach is AirTab
You saw that Jalopnik article yesterday too, eh? ;)
Are there any numbers on the before and after to these modifications? Is it really worth it?