>>5277204I found this image on the official LEGO Shop Facebook page, with this statement:
>We noticed a few questions about whether the Ecto-1 (set 21108) fits inside the Firehouse Headquarters. As you can see in the pictures, it does fit on the lowest floor but you need to move a desk, some newspapers, and a few crates (the items pictures in the lower, left corner).>Just to be clear, the Ecto-1 is sold separately in set 21108 and does not come with this set. We hope this helps to clarify things! 