The report also lauds the land-based eLoran radio navigation system as a very worthy back-up technology.

BBC: UK 'over-reliant' on GPS signals, engineers warn

The entire BRABUS multimedia system is controlled from the passenger seat or the rear compartment by two iPads that also control the car's standard COMAND system with all functions such as radio, navigation system and telephone.

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Each probe can pick up GPS signals and signals from eLoran, an enhanced version of Loran, the ground-based terrestrial radio-navigation system first used by the American and British navies during the second world war.

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To use the MINI Connected App, owners need to specify their MINI with the MINI Visual Boost radio or MINI navigation system, plus the MINI Connected option.

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Fog lamps, halogen headlights with projector technology, rear park assist, AWD, cruise control, XM radio, traction control, daytime running lamps and a navigation system all come standard.

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Each onboard ADS-B set consists of a Global Positioning System satellite navigation unit, two Pentium microprocessors, some software and a radio transmitter-receiver--not much more gear than you would find behind the dash of a new Cadillac.

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The 2012 Camry System includes features like Pandora internet radio control (when available), built-in Navigation package with state-of-the -art iGo Primo software featuring lane assist, Navteq US and Canada maps plus 11 million POIs and 3D landmarks and building graphics.

ENGADGET: Advent intros the OTOCAM3 multimedia navigation system for Toyota Camry