NascarPerry

Sounds good. Like they say, Patience brings great rewards. I'll keep my eyes out

I won't request it lol, but If you ever decide to explore re-creating that pack, let me know. I could begin reworking on the newer TPS skins again to coincide with it

Hello all, 
 
Thought I'd weigh in as my vehicles were being linked. Maybe I can provide an insight as a developer. I'm sure a lot of this has already been covered by others above, but TL;DR.
 
Coronas are depend on a number of things with regards both ELS and Non-ELS.
 
Non-ELS coronas tend to be seen at the point of where the mesh (The bit thats emissive) tends to be. This is because with Non-ELS, the 'sirens' as they're called use the position of the dummy to work with. The dummy also emits the corona. However, there are a number of factors that can prevent this:
 
The developer has moved the corona into a location where it is obscured. This is mainly used when more than one 'meshes' are attatched it it, and it prevents the scaled down mesh (when the siren and lights are off) being seen. You'll find this on a lot of 'ELS Mimicking' vehicles, e.g. like Captain 14's LSPD pack.  The visual mod you are using destroys the coronas by scaling them down, or by simply removing them. I often found this issue when using VisualV or NVR. NVR isn't as bad, and personally it's why I turn the corona scaling up massively in the code Unfortunately for both, there's no real fix. You'd have to speak with the developers about corona locations, or adapting new models to show them, and the Visual Mods you need to know the files and the code to change to get them to work. 
 
ELS vehicles don't work the same way, as ELS turns of and on rather than scaling. The reason's you're not seeing a corona is because:
Again, as above, the coronas have been slaughter by visual mods.  The ELS Coronas are awfully set up (imo anyway). They appear waaayyyy to close. As you move away from a vehicle, it loads various LoDs, or levels of detail. Same goes for ELS. Coronas appear still at L1, whereas it's still fairly close to the car and cause overlap. So the developer just decided to get rid of the coronas and hide them.  ELS Coronas flash setup is.... unusual. It's based off the co-ords in the VCF, but it's not very well covered, and at least in my opinion. So again, the developer just decided to get rid of the coronas and hide them OR the corona is simply being hidden by the A-Pillar or whatever because of the position. Personally, when I build ELS vehicles, I simply reset all my ELS meshes to the world, and they're hidden under the cars. The combo of awkward positions for the coronas and the fact they appear to close and overlap the ELS meshes, just puts me off, so I hide them. Unless, ofc, they're rotors. 
 
I should note, unless you know whatcha doing with visual or siren setting files, I wouldn't touch them. They're quite convoluted, and could cause a realm of issues.
I should also mention, just because a developer doesn't respond/ won't adapt models to showcase coronas, DO NOT resort to any form of unlocking/ ripping/ etc just to get your way. Just respect their choice.
 
And I know those last few sentences, a lot will be like 'FFS Jed, duh. I'd never do it'. But it has become more prevelent recently, so just thought I'd mention it in an effort to be transparent between Devs and the community. 
 
A lengthy response I know, but thought this might help.