Paste these in the files mentioned (they're in the data folder)


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

vehicles.ide
596, 	copcarla, 	copcarla, 	car, 		POLICE_LA, 	POLICAR,	null,	ignore,		10, 	0,	0,		-1, 0.75, 0.75,		0
597, 	copcarsf, 	copcarsf, 	car, 		POLICE_SF, 	POLICAR,	null,	ignore,		10,	0,	0,		-1, 0.7, 0.7,		0
598, 	copcarvg,	copcarvg,	car, 		POLICE_VG, 	POLICAR,	null,	ignore,		10, 	0,	0,		-1, 0.75, 0.75,		0
599, 	copcarru,	copcarru,	car, 		POLRANGER, 	RANGER,		null,	ignore,		5, 	0,	0,		-1, 0.7, 0.7,		0


handling.cfg
POLICE_LA    1800.0	   4000.0 	2.0    0.0 0.2 -0.10 75  0.65 0.85 0.50 	5 177.0 24.0 10.0 R P 	10.0  0.55 0 35.0 	1.1  0.15  0.0 	 0.27 -0.08 0.54 0.3 		0.2  0.56 35000 	40002000 	400001 		0  1 	0
POLICE_SF    1600.0    3400.0   2.0    0.0 -0.4 0.0  70  0.70 0.8 0.52 	5 200.0 30.0 5.0 R P 	7.0  0.53 0 35.0  	1.4  0.12  0.0   0.30 -0.08 0.5 0.0		0.2  0.24 2800 	40002004		4	0  1	0
POLICE_VG    1800.0	   4000.0 	2.0    0.0 0.2 -0.10 75  0.65 0.85 0.50 	5 177.0 24.0 10.0 R P 	10.0  0.55 0 35.0 	1.1  0.15  0.0 	 0.27 -0.08 0.54 0.3 		0.2  0.56 35000 	40002000 	400001 		0  1 	0
POLRANGER    1500      2400	2.0	0.0	-0.1	-0.1	80	0.70	0.80	0.5	4	200	30.0	10.0	R	P	6.0	0.50	0	35.0	1.0	0.07	5.0	0.25	-0.10	0.45	0.0	0.38	0.40	15000	00002004	00000002	1	0	1