@Euz in order to do that, you'll need to open (with Winrar) the "RealisticDrivingV_2.5_Scaled_Topspeed.oiv" or the "RealisticDrivingV_2.5_Real_Topspeed.oiv" package. In it, you'll find a "handling.meta" file, which is where all the modded handling data of the vanilla vehicles is located. So, let's say you want to apply a modded handling to a Ferrari Portofino add-on, for example. What you'll need to do is:
1. Figure out which vanilla car is the closest in comparison to the add-on you're trying to edit. In this case, it is the Grotti Carbonizzare.
2. Go to https://gta.fandom.com/wiki/Vehicles_in_GTA_V, search for "Carbonizzare" and locate its handling name. On that link that I provided, the handling name of any vehicle is always located under "Miscellaneous Information".
3. Once you have that handling name (which in this case is "carboniz"), right click on the "handling.meta" provided within Realistic Driving V mod, select "Edit with Notepad" and search for "carboniz".
4. Once you find it, copy everything from <fInitialDragCoeff all the way down to </SubHandlingData>.
5. With OpenIV, open the folder containing your add-on dlc.rpf file and go to dlc.rpf/data/handling.meta
6. Right click on "handling.meta", select "Edit" and paste all the data your previously copied from <fInitialDragCoeff all the way down to </SubHandlingData>. Save it!

If you do this process correctly, you'll have your Ferrari Portofino driving with the Carbonizzare handling. It sound complicated at first, but it's the same process for any other add-on. Once you do this a few times, it gets easier.

Let me know if you have any doubts. :)

best of best

This masterpiece needs an update!

my game keeps crashing on the loading screen I don't know if it's because of this mod or not but does anyone have any fixes

we still waiting the update

Anyone got this guy's socials? We need to ask him to update the mod...

@sizzzzle did u find the solution mate? im facing the same problem too

still the best and realistic handling so far, extraordinary perfect if support all DLC's, i know is super hard work but i still hope, the day will come

hey. out of a bunch of realistic handling mods this is my faverote. and also covers damage. would be soo sweet if you worked on this again !

Mod sucks. My GTA error and Crash after installing this mod. I've try uninstall this mod and still crash. Check your sucks mod dude.

Does this support addon cars ??

@Naman_1212 From the description incase you didn't bother reading it:

"This mod was developed specifically for vanilla 3D-models. Custom car models have completely different center of mass and wheelbase. Making this mod work with all custom cars is impossible. Using custom cars will have a very noticeable negative impact on car handling. Dont complain about things that i cannot possibly fix. please."

Overall, a great mod. But the handling on motorcycles is a bit odd in my opinion

Motorcycles can no longer drift and brake hard

l think l had this mod too which l think l installed the raw sense of speed (unplayable most of time lol) but l stopped playing for a few months then RSC updated the game then got crashes after storymode loads. then updated scripthook but still crashing then updated rpf file using openiv then l finally l could play but with original rpf handling which sucks a lot

I think the motorcycle is odd, it doesn't have its maneuverability I would expect it to, overall its a great mod.

будет ли он работать на последней версии 1.0.25.45 0 2022 года?

@Naman_1212 вот тоже интересует этот вопрос. У меня кар пак на более 2000 машин. Не хотелось бы всё потерять.

The mod still works?

the mod still works