The Woo Woo 4000 is a new kind of vehicle in The Sims 3: Ambitions. It is attached to the Firefighter profession. It is very slow in the beginning of the game but can be increased through 3 levels of upgrading to become significantly faster. Just like the fire alarm, it requires maintenance on a regular basis. Upon reaching the top of the Firefighting profession, the sim will receive their own personal Woo Woo 4000 in their inventory and can recolor it as they see fit. As long they are a Firefighter, they will be required to maintain the vehicle, however, should they choose to quit the profession, they can still have the Woo Woo 4000 and will no longer be required to maintain it.