So, the lightbar is BeamNG's old modern lightbar. If you know where to get the lightbar, send me a link that provides it.
It got completely removed from game files and I don't think there is a way to get it back sadly, maybe if someone could port all assets from the old version, idk why they had to remove it
There’s this, but it’s only for the Grand Marshal (for now) https://www.beamng.com/resources/old-modern-lightbar-for-grand-marshal.24381/
The real reason why BeamNG.drive removed the old police lightbar from the Bruckell bastion is because there was a problem with the lightbar illumination.
No, they revamped all of the light bars in an update. This has been replaced with a better version with an updated 3D model and textures.
I don't think this one is much better than the old one, it's much different for sure, the 2 versions are only 1 major update apart
You need to install the 32-Bit legacy version from Steam (Right click -> Properties -> Betas -> From the drop-down menu select the 32-bit version, you can even go further back if you need to)
There are no other (older) versions to choose from. You could ask the devs if there is a code to gain access to 0.24 but I don't think they'd give it to you, even if it does exist.