gtasa/data/handling.cfg
JESTER       1700.0    3100.0   2.7    0.0 0.3 -0.15 85 0.78 0.85 0.5       5 205.0 28.0 6.0  4 P   6.0   0.52 0 35.0   1.0  0.18  0.0   0.28 -0.10 0.5  0.3        0.16 0.70 100000    40002004    4000001     1  1    1

gtasa/data/vehicles.ide
559,	jester,		jester,		car, 		JESTER, 	JESTER, 	null,	executive, 	7, 	0,	0,		-1, 0.7, 0.7,		1

gtasa/data/carmods.dat
jester, exh_a_j, exh_c_j, fbmp_a_j, fbmp_c_j, nto_b_l, nto_b_s, nto_b_tw, rbmp_a_j, rbmp_c_j, spl_a_j_b, spl_c_j_b, wg_l_a_j, wg_l_c_j, nto_b_s

gtasa/data/carcols.dat
jester, 0,10, 2,10, 41,10, 44,10, 49,10, 49,10

get that mod car colors make your game more cool ;)
http://www.gtainside.com/en/sanandreas/mods/86342-car-colors-mod/