To dream of a limousine represents decision-making or a direction in life that where everything is being done for you. You may be noticing other people doing all the work for you in some situation. A limo may reflect power, wealth, prestige as you are catered to.
Example: A woman dreamed of driving around in a limousine with Ronald Reagan. In waking life she was heavily pregnant and everyone she knew was trying their hardest to make her feel good while trying to make her life easier doing all her chores for her.