replace in:
...data/vehicles.ide
596, copcarla, copcarla, car, POLICE_LA, POLICAR, null, ignore, 10, 0, 0, -1, 0.778, 0.778, -1

597, copcarsf, copcarsf, car, POLICE_SF, POLICAR, null, ignore, 10, 0, 0, -1, 0.74, 0.74, -1

598, copcarvg, copcarvg, car, POLICE_VG, POLICAR, null, ignore, 10, 0, 0, -1, 0.721, 0.721, -1

599, copcarru, copcarru, car, POLRANGER, RANGER, null, ignore, 10, 0, 0, -1, 0.94, 0.94, -1

...data/handling.cfg
POLICE_LA 1250 3700 2 0 0.3 -0.1 75 0.65 0.8 0.5 5 255 24 10.5 F P 8 0.55 0 31 1.4 0.76 0 0.27 -0.1 0.58 0.3 0.2 0.56 35500 40000000 10200008 0 1 0

POLICE_SF 1500 4000 2 0 0.3 -0.1 75 0.65 0.8 0.5 5 260 22 10.5 F P 8 0.55 1 31.3 1.4 0.76 0 0.27 -0.1 0.58 0.3 0.2 0.56 39500 c0002004 208000 1 0 1

POLICE_VG 1200 2500 2.2 0 0.15 -0.1 70 0.7 0.86 0.5 4 190 21 5 F P 8 0.6 0 30 1.4 0.12 0 0.3 -0.08 0.5 0 0.26 0.5 22000 40000000 10200008 0 1 0

POLRANGER 3250 5008.3 2.5 0 0 -0.3 85 0.75 0.85 0.5 5 195 25 20 4 D 6.2 0.6 0 35 2.4 0.08 0 0.28 -0.14 0.5 0.25 0.27 0.21 41000 20220010 504400 0 1 0

...data/carcols.dat
copcarla, 0,1
copcarsf, 0,1
copcarvg, 0,1
copcarru, 0,1