look up any word, like dirty sanchez:
 
1.
The phenomenon of gently turning the sreering wheel in response to bouncy, inspiring music. Usually not a conscious action, it may appear suspicious to law officials observing your driving.
No officer, I have not been drinking-- I must have been car dancing!

MOM! Quit car dancing. You are making me nervous.
by Dawgmum April 12, 2010
 
2.
To dance while iside of a moving vehicle. Usually dangerous if the driver is involved, and is the cause of 1/4 of car related deaths.*

*Information may not be accurate
While car dancing, a cop saw me drive past a stop sign without stopping.
by roboserved May 09, 2009