11.   Already rental car companies are putting satellite-guided navigation systems in some cars.

12.   Also beginning to make its way into vehicles are computerized navigation systems.

13.   Although navigation systems are long on knowledge, they are often short on wisdom.

14.   An electronic navigation system in each unit is programmed while the plane is in flight with the ground coordinates of the intended target.

15.   And Avstar is a truly hands-off navigation system.

16.   And recent times have brought the new technology of computer software mapping and vehicle navigation systems.

17.   And there is nothing like doing it in a new car equipped with a navigation system.

18.   And owners, with the help of Rolls-Royce design team, can design interior touches to include anything from a navigation system to a business center on wheels.

19.   And there are navigation systems that can be run by laptop computers, for use in the family car or a rental car.

20.   Another option is a DVD-based navigation system.