Unlike the signals on its vehicles in the U.S., this indicator flashes three times at the driver's touch and then shuts off.

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Economists pay close attention to the data, though, for their use as an indicator of consumer spending, the key driver of U.S. economic growth.

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Along the top is a sort of status bar, showing the outdoor temperature, a simple representation of the battery life for the car, the name of the currently loaded driver profile, a signal strength indicator for the integrated 3G modem and a tiny clock.

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