In Navevo's case the data will be used to flash a warning symbol on its sat-nav maps when a driver approaches a "warning zone" with a 50m (164ft) radius circle drawn around the area.

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She said that the taxi driver who brings her every day to the green zone checkpoint has told her he cannot let her ride unless she wears a headcover.

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It currently doesn't believe the cause was its ( previously recalled) Lithium-ion battery, exhaust routing or electrical components, having learned that the ignition zone was outside the engine compartment, in front of the driver's side front tire.

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Extras: On my test cars additional features included the moonlight blue metallic paint, allroad Premium Plus Model with auto-dimming interior mirror with compass, auto-dimming power-folding, heated exterior mirrors, Audi music interface with iPod cable, Bluetooth, driver information system, heated front seats with driver memory, HomeLink garage door opener, Audi xenon pluse lighting with LED DRL, three-zone climate control and power tailgate.

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Where cities have pollution restrictions, for example, a driver could elect to drive purely on the battery, or to switch to that quieter mode in a school zone.

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