* Transportation: This is the most general and encompasses all forms of moving from one place to another.
* Mobility: This focuses on the freedom of movement that a car provides.
* Vehicle: This is a broader term for any means of conveyance.
* Motoring: This refers specifically to the act of driving a car.
* Commuting: This refers to the daily journey to and from work.
The best abstract noun to use will depend on what you are trying to convey.