As for the performance freaks, you can enable Ultimate mode which is right at the bottom of the "ASUS customized setting" menu, but we didn't notice any performance gain during our benchmark tests.

ENGADGET: ASUS PadFone 2 review: two times is a charm for this phone-in-tablet combo

Electricity will be the primary power source of the car, although when that runs low a gas-powered mode will enable driving for hundreds of additional miles.

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Canon opted to use microSD cards here, due to the camera's small size, along with a rechargeable battery that can be replenished through the USB connector -- a new Eco mode will enable an up to 30-percent boost in battery life, with the display powering down after eight seconds, then waking up when the built-in gyro sensor detects movement.

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