The Ecto 1A (officially named Ecto-1a) was an updated version of the Ecto-1 that the Ghostbusters used to travel. The Ghostbusters had put improvements on Ecto-1 with more technical equipment. One of the most noticeable upgrades was a digital announcement board running down either side of the vehicle's roof broadcasting Ghostbuster advertisements, specials, and their phone number, JL5-2020 or 555-2020. Also, the logo was updated on the doors and back entrance of the ambulance.