ECTO 1 ,,not anymore .

[Old Wombat]

That will be because you have AMT's ECTO-1A (not an ECTO-1) from Ghostbusters II.

The photos below are from the Ghostbusters Wiki & show a full-width red step;

1. A screen still taken from the movie:


2.A still taken from a cut scene:


See, they got it right!

[Wardukw]

Yup its on Ecto1a for sure and AMT does have it right and there's no license plate on the rear at all..soooo I was wrong ..bugger!! 😁
OH well makes no never mind that's going bye bye anyway ..it's terrible and looks bad ..so it's custom time for the bumper as it wreaks the look of the rear end.
The annoying thing is in Ghostbusters 2 you never see the back end and in afterlife it's a normal bumper and there's plenty of good clear views of that .
No idea why Ray Stantz would change it from original to modified back to original..weird.😊