I believe its the Whelen Liberty or Freedom lightbar that comes with the mod from @Maxy_к9-Fυяяу here's a link. https://www.beamng.com/threads/98-11-ford-crown-victoria-v1-8-2022-08-01.84582/
I've been working on a mix of different graphics mods. AL18 with out CK's graphics settings AL18 With CK's Graphics settings