How about the four headlights (1980s pre-facelift style) for Gavril Grand Marshal which looks like it was before the current version of the headlights? Image is provided (P.S. I edited the headlights).
I think realistically this would be like the 1990-1993 Grand Marshal. The body shape is too modern for an 80s car. The current in game version would be the 1994-1997 model
88-89 was right about when manufacturers started switching over from bricks to lozenges, though not for US fullsizes which stayed boxy until '91-'92 - so Gavril is already ahead of the curve anyway.
That is great. How about the quad headlights with curved sides of the grille? P.S. I modified it via MS Paint.
Ooff... I am suggesting the 1988-89 headlights for Gavril Grand Marshal while the boxy ones you are referring to are the 1987 and earlier.
Yet another image of the 1989-1990 Classic Edition (marked after third (current) facelift is introduced) style (credits given to a BeamNG YouTube video, but with modified headlights)
In that case, the Gavril Grand Marshal with those headlights will be referred to as "Classic Edition" (1990-1993).