To dream that you are driving a vehicle symbolizes the road you're traveling through life. This dream is telling you about the manner through which you are traveling. If you can't see the road ahead of you, then you may not have direction in your own life. You don't have ambition. If the road is winding, this suggests that you are having difficulty reaching your dreams.
To dream that someone is driving you indicates that you are reliant on the person driving. You have lost power over your own decisions and follow others instead. If you are driving from the passenger side, then you are attempting to take charge of the direction of your life. You are starting to make your own choices.
To dream that you are driving a cab or bus indicates manual work with few chances to move up in the business.
To dream that you are driving in reverse indicates that you are facing challenges that seem to be holding you back. If you drive backward into water, then your feelings are keeping you from being successful.
To dream that you are driving drunk suggests that you have given up control in your life. Somebody is controlling you.
To dream that you drive off a cliff indicates that the more you achieve in life, the tougher it will be to hang onto that success. You may sense that getting promoted will be a double-edged sword. You could also be sensing that it's almost impossible to please everyone all the time.