PUT BUFFALO4.DAT INTO THE "carmods" FOLDER! (if it doesn't exist, create a folder called "carmods" in your game folder and put the .dat there)
CAR REQUIRES THIS TRAINER 21.09.26.1 AND UP TO WORK PROPERLY https://gtaforums.com/topic/896795-1000-1080-zolika1351s-trainermod-menu-rewritten/

Use https://gtaforums.com/topic/955449-iv-zolikapatch/ to make the steering wheel move and engine & exhaust shake

Vehicles.ide:
buffalo4,        buffalo4,        car,        BUFFALO3,    BUFFALO,    VEH@STD,                NULL,                50,        999,        0.2974, 0.2974,        0,    5,    1.0    ,0    livery+wheelangle:-19.8875
txdp
vehshareVdirt, vehshare
muscle_supercharger, vehshareVdirt
muscle_n_w_interior, muscle_supercharger
buffalo4, muscle_n_w_interior

Handling.dat:
BUFFALO3        1700.0  7.5       85    0.0 0.0 -0.24          0.0  5  0.23  1.0 155.0    0.25 0.65 0.7  35.0        1.35 1.10 13.5 0.15 0.48        2.0  1.2  1.2  0.13 -0.13 0.0  0.5          1.0 1.0 0.8 1.5     0.0  25000         440010        1                0

Carcols.dat:
buffalo4,	0,0,3, 0,0,103, 3,3,103, 1,1,79, 3,3,73, 4,4,82, 6,6,84, 11,11,86, 16,16,92, 23,23,25, 34,34,28, 36,36,27, 47,47,91, 52,52,53, 53,53,51, 64,64,65, 69,69,63, 70,70,64, 73,73,58, 76,76,58, 2,2,63, 21,21,72, 22,22,72, 13,11,91, 19,19,93,

.max project as mass tuning example for car mod makers:
https://mega.nz/file/XcARUQgS#cXqb8Dq6h5ij1KnCAeALkD62S6ljcEcpzY_nAyufqpQ