Has been posted some time ago, but is still not resolved.
Multiple vehicles have a wrong mirror image like it was reported here; https://feedback.bistudio.com/T74889

Here is a new image I have created: https://www.dropbox.com/sh/a9jiy0q1dwbuh12/AABqqrB0EXswRw9kb-sCYU6La?dl=0
You can see that both big mirrors show the same image.