Half a croissant, on a plate, with a sign in front of it saying '50c'

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Car Sail

emergency option for when you run out of gas

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Like a Sail Boat sail but engineered for a car.

Telescoping Mast that locks onto the roof or hood etc...

—	vfrackis, Aug 24 2012

This image looks like this idea ... http://farm1.static...90_c070ba46b4_o.jpg
... but I can't find any text about it, other than political speech of questionable veracity. [CraigD, Aug 27 2012]

A wind-powered battery electric car http://shopping.yah...ords-000000697.html
Uses a wind turbine rather than a sail, but a POC for an emergency wind charger for a more ordinary electric car. [CraigD, Aug 27 2012]

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If there's no gas, what's going to blow the sail?

—	spidermother, Aug 25 2012

Could be a solar sail.

—	pocmloc, Aug 25 2012

"Low bridge ahead ..."

How do you tack ?

This might work in the Midwest and Holland, but quite a few bits of your planet have these things called "hills" ...

—	8th of 7, Aug 25 2012

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