NASA’s shuttle replacement, but do not for a minute am certain the interior resembles a jungle of wires, screens and antennae: all the electronic gear is seamlessly integrated in a numerous extraordinary way. A sample of the wares in the blacked out supercar in the gunmetal gray blade list five GPS units, two radar detectors, police scanner, CB radio, kill switch for all rear lights, high-speed broadband Internet amid Wi-Fi running on a tablet PC, electricity ports, takedown lights, a remote-controlled lose bypass valve, and — get such a — a liquid-cooled infrasonic wave pulse generator.

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At highway speeds, your vehicle is fighting an invisible foe trying to hold it back. The nemesis is wind resistance, and it is an automobile’s worst enemy. Overcoming the resistance of the air is the key to increasing acceleration, top speed, and improving fuel economy.

Wind resistance is often measured with sophisticated computers in multi-million dollar wind tunnels. The result is usually expressed as a number called the “drag coefficient” (Cd). While having a low drag coefficient is important, the size of the vehicle (expressed as “frontal area”) is also important. In general, as drag coefficient and frontal areas decrease, a vehicle becomes easier to push through the wind. Automakers are well aware of this, so they go to great lengths to ensure a low Cd on vehicles designed for high efficiency. Some approximate Cd values for well-known vehicles.

[Source: Instructables]