The Karin Kuruma from the Heists update (liveries from the Los Santos Tuners update) with ALL tuning parts included and fully usable, along with a moving steering wheel, HQ & LQ interior variants and all liveries.
I've included the .max project file for anyone who wants to make their own fully tunable car.

REQUIRES v65.0 or newer of Zolika1351's Trainer/Mod Menu to work, otherwise the car is completely unusable. v65.5 or newer recommended to avoid instability and to be able to purchase tuning parts in Pay 'n' Sprays (Vehicle Options - Pay 'n' Spray Mod Garages)
PUT KURUMA.DAT INTO THE "carmods" FOLDER! (if it doesn't exist, create a folder called "carmods" in your game folder and put the .dat there)

Use https://gtaforums.com/topic/955449-iv-zolikapatch/ to make the steering wheel move and unlock the 4 livery limit

Vehicles.ide:
kuruma, kuruma, car, VIGERO, SULTAN, VEH@STD, NULL, 100, 999, 0.2363, 0.2363, 0, 5, 1.0 ,1, livery+wheelangle:-17.839
txdp
vehshareVdirt, vehshare
kuruma, vehshareVdirt

Carcols.dat (car4):
kuruma, 74,0,83,90, 0,1,1,133, 3,1,1,133, 10,1,1,133 25,1,1,133, 37,1,1,133, 53,6,1,133, 61,1,1,133, 75,1,1,133, 92,1,1,133, 6,0,12,133, 10,0,12,133, 21,0,12,133, 23,0,12,133, 25,0,12,133, 33,0,35,133, 34,0,34,133, 47,0,35,133, 49,0,63,133, 52,0,56,133, 54,0,55,133, 65,0,63,133, 67,0,118,133, 70,0,65,133, 98,0,90,133, 16,0,76,133, 9,0,91,133, 15,0,93,133, 19,0,93,133, 13,0,80,133,

Tuning part count: 24
Tuning part list:
No Roll Cage
Roll Cage and Chassis Upgrade
Stock Exhaust
Oval Exhaust
Race Exhaust
Chrome Tip Exhaust
Stock Skirts
Body Color Street Skirt
Secondary Color Street Skirt
Carbon Street Skirt
Body Color Slick Skirt
Secondary Color Slick Skirt
Carbon Slick Skirt
Stock Front Bumper
Body Color Front Splitter
Secondary Color Front Splitter
Carbon Front Splitter
Stock Spoiler
Secondary Color Stock Spoiler
Carbon Wing
Color Coded Wing
Carbon Wing Type II
GT Wing