Most cars do not use many magnets, however, there were several experimental cars developed during the 1940s and being reexamined currently that actually run on large electromagnets. The main downfall of these cars is that they pulled down power lines and literally ripped cables up from under the road with their powerful magnetic field.
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Slot cars use magnets that help hold the cars on the track
No clue :P
electric motors mainly.
you can use magnets to separate iron from sand.
Magnets are better used in lifting hot metals. Lifting magnets are the type of magnets that are used to lift high temperature magnetic materials.
hard drives use magnets for storing information, Washing machines to keep the door shut, cars, microwaves, computers use magnets for storing information, telegraphs, telephone, televisions, mac laptops,microphones,cupboard doors to stay shut, compasses have a magnetised needle in them to direct you. It's not 15 but here's 12.
in the motor e.g. engine, transmission etc
Some of the water heaters uses magnets. Magnets softens the water.
they use magnets to concentrate energyto them
A vacuum does not 'use' magnets. However magnets and a vacuum are used in conjunction in several applications. particle accelerators for example.
(electro) Magnets in the "track".