A:AnswerThe suction cup on the bottom of the base can be used multiple times (if you're mounting on the windshield you should be able to switch back and forth with no problem). Over time you'll probably find that the suction cup will get dirty and become less "sticky", but if you rinse it with water and let it air dry the stickiness will be restored.
*The dashboard pad that's included in the package is designed to be single use, so you won't be able to switch that back and forth between cars.