When you saw "invisible car" in the headline of this story, I'm sure a yeah right slipped out from some of your mouths. But I'm not kidding.
The whole thing is a "publicity stunt," writes Mashable, in order to show how the new Mercedes F-Cell hydrogen car has zero emissions (save for water). The clever line is that it's essentially "invisible to the environment." And while that is up for debate (after all, what about all the coal burned to manufacture the parts for the car?) the truth is the video below shows how it's at least nearly invisible to the naked eye.
The video explains how it's done, but basically the developers attach a slew of LEDs to the car, put a camera on the other side, and then broadcast the image onto the new "screen."
Mashable has more on the vehicle:
Mercedes says its hydrogen-powered drive system is “ready for series production,” but other reports have its commercialization set for 2014. However, fuel-cell technology is still notoriously expensive, partly because hydrogen is a difficult fuel to store and transport. The materials needed to create a viable fuel-cell are still hovering in the pricey stratosphere.
(H/T: Business Insider)