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@L_v_H this is clearly a modkit issue
carcol and carvariation "XXXXX_carname-modkit" have to match togetther and bein different of any other car on your server/game (including vanilla car) find the car that got the numer ( twince in carcol once in carvariation) then you'll have find your conflict.

@alex0701 check the vehicle.meta.

change this
"<Item>
<parent>vehshare</parent>
<child>vehicles_race_generic</child>
</Item>
<Item>
<parent>vehicles_race_generic</parent>
<child>vehicles_race_interior</child>
</Item>
<Item>
<parent>vehicles_race_interior</parent>
<child>vehicles_requiemzr_interior</child>
</Item>"
to this
"<Item>
<parent>vehicles_race_generic</parent>
<child>vehicles_requiemzr_interior</child>
</Item>"

THEN add in all the texture from the "vehicles_race_interior.ytd" into "vehicles_requiemzr_interior". that should fix it.
an update will be pushed later but i dont have time for now

it dont cost anything*

@pixelmurderer it's an engine we made with some R* assets and a bench created by us in blender.
btw we totaly accept our part to be reused and such, just some credit would be apreciated. simple, efficient, everyone win and i cost anything :p

@pixelmurderer engine front tube frame is literaly a copy past. not even tried to remove the lore friendly decals
https://img.gta5-mods.com/q95/images/sultan-rsv8-mk2-add-on-tuning-sound-livery-template/b3cad3-122.png

@BlazikenFTT go ahead

@Rick Mou extra 1 and 2 are the disc ^^ you need a mod menu

@andrezin_ absolutly not planed, this is final version, sorry man ^^
actualy, removing bumpers and skirt would leave holes, and since it's a car build for ONE rp character, we wont touch it again, it suit perfectly the purpose, it's only shared because why not ;)

@gentlejoey123458 check bmw r35 and derivated models ;)

@Deniss77 and no dirt map, no lods, damn you should not rate that much !