Insurance companies have confirmed that "MirrorNavi" is defined as a fitted navigation system for their purposes and another advantage is the absence of suction cup marks on the windscreen which might alert thieves.

The "MirrorNavi" itself has tinted and dimming mirror glass, battery charging connection and anti-theft security and it is available on all Ford cars and vans.

"MirrorNavi" is made by Garmin and Wollnikom and includes a 3.5-inch touchscreen colour display, an internal memory and card slot, 2D or 3D map display, destination memory, EcoRoute and maps and voice response for more than 70 countries and languages.

Available now, "MirrorNavi" costs £299 plus local dealer fitting charges.

(Ford Ranger and Ford Ka 2009 are excluded as there is insufficient gap between the driver and passenger sun visors.)

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