To dream of a motorcycle signifies your need to be on your own and seek out adventure. This is a manifestation of how you are avoiding responsibility. This dream is also symbolic of maturity and sexuality.
To dream that you are on a speeding motorcycle denotes that you are overly impatient. You want to get things as fast as possible.
To ride in a vehicle in a dream represents your life's speed and direction. Refer to particular vehicles for more detail.
The driver of a vehicle in a dream represents the person, or the aspect of yourself, or a part of your life, which is in control of your life's path. For example, to dream that your boss is driving you around indicates that your work has become the main factor in your life decisions.
To dream of falling from a vehicle indicates that you feel out of control.
To dream of crashing a vehicle represents a self-destructive action.