I saw some other boxes for Hot Wheels cars and they looked like drawings. However, the picture on the ECTO-1 Hot Wheels box still looks like a 3D model to me. I guess after so many years of working on a 3D model ECTO-1, just about all images of an ECTO-1 start to look like 3D models.
I looked again at the ECTO-1 image on the Hot Wheels box and noticed that you can see the silhouettes of the windows on the other side of the car, so the windows aren't made to look completely solid black as I initially thought.
Anyways, I got the lightbar fixed.
A close up without the blue tinted covers. I got the rotating lights spot on thanks to some photos in that massive collection of ECTO-1 reference pictures which Cosmic-Riptide sent me.
It looks lame in the program but it'll look much better once in the game.
Before I get the lightbar attached to the mounting piece, I need to adjust the roof. The light bar is practically touching the roof and the mounting part that goes up to the lightbar is stretched too far. Luckily, there is space to flatten the overextended curvature of the roof without needing to adjust the ceiling on the inside of the car. Once adjusted, I shouldn't have anymore proportion troubles while putting on the lightbars and roof rack.