The EN-V runs on battery power and plugs into a wall -- giving it a max speed of about 30 miles per hour and a range of about 30 miles.

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Impressive Speed: With auto focus speeds as fast as 0.16seconds, the F800EXR delivers outstanding high speed shooting capabilities, up to 8 frames per second (fps) at full resolution (11fps max speed at medium resolution), and full HD movie capture at 1080p (30fps) in stereo.

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Besides improving upon the resolution of its 8 megapixel predecessor, the FZ30, the FZ50 also throws down a new feature called Intelligent ISO Control, which adjusts the ISO setting (max. 1600) and shutter speed based on subject movement -- promising to minimize image blur without forcing the user to adjust the manual controls.

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The top speed of the K-MAX is only about 100 knots (115mph), but it has all the virtues of unmanned aircraft: it never gets sick, tired or goes on leave.

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Some new ticket estimates have dropped, but so has the speed: officials now claim it will max out at 186mph.

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With a maximum electric-only speed projected to top that of Prius plug-in, C-MAX Energi drivers might be able to reach wherever they're going a little faster, too.

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Each of two 75-foot max trucks can hold up to eight average dump trucks' worth of debris and has a high-speed crane with interchangeable heads that can lift, crush and cut its way through collapsed buildings in 20 minutes to an hour.

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