@Sup321V Glad it helped even with the limited extent. Have you tried the fTractionSpringDeltaMax as well? It was indeed a completely different description that you shared.
I'll try to tweak some addons handling this week if I ever find time to do so.

@AnDrewPwnz
On Documents\Rockstar Games\GTA V\settings.xml set this:

<ReflectionQuality value="0" />
<Reflection_MipBlur value="false" />

Not sure about the water, but that will remove basically all reflections from vehicle/glass/mirror

@Sup321V I hadn't played with handling myself yet, just forwarding the info cause I did read them a while ago.

I understand you need to tweak CoM together with fRollCentreHeight(Front/Rear), maybe also fTractionSpringDeltaMax as mentioned here:
https://forums.gta5-mods.com/topic/3842/tutorial-handling-meta

https://eddlm.github.io/Handling-Tools/guide

@Leo0912 when I had this issue, the problem was in vehiclelayouts.meta

@JohnFromGWN now it's faster to declare bigMessege

@JohnFromGWN You should only edit game files if you hate yourself lol. Eventually you'll get surprise integrity check...
I have everything in mods folder cause I did edited every single .rpf.

This is the correct answer:
@JohnFromGWN said in which vanilla dlc-packs are necessary and which aren't?:

Personally I only copy over files from vanilla to mods if they require editing.

I'm saying he can even clear his dlclist.xml and delete everything from /update/x64/dlpacks/ and the game will launch just fine, so not really necessary at all to begin with. It is 53.5GB just there.

@O-MATIX none is "absolute necessary". You can completely empty your dlclist.xml and the game will launch, it'll also be faster to load.

Of course you'll miss a bunch of stuff, vehicles, peds, weapons. Some mods are dependent on certain dlcs so you might have issues.

TL;DR 😂

It is often a painful process bro. Do one thing at a time. Backup the whole thing whenever you messed with a bunch of stuff and game is still working. Eventually you'll have it broken and reverting to stable point will save you a lot of trouble. Many tutorials are nonsense.
Avoid automatic installations with .oivs, extract them, understand what they are doing and take care to not overlap.

@Raiyus13 thanks a lot, that got me going