Damit die Reifen nicht halb in der Strae stecken, solltet ihr noch die vehicles.ide 
wie folgt anpassen:

560,	sultan,		sultan,		car, 		SULTAN, 	SULTAN, 	null,	richfamily, 	20, 	0,	0,		-1, 0.7, 0.7,		1

in der handling.cfg
SULTAN 1400 3400 2.4 0 0.1 -0.1 75 0.8 0.8 0.5 5 200 28 5 4 P 10 0.5 0 30 1.2 0.15 0 0.28 -0.08 0.5 0.3 0.25 0.6 35000 2800 4000002 1 1 0

in der carcools.dat
sultan, 52,39, 9,39, 17,1, 21,1, 33,0, 37,0, 41,29, 56,29

carmods.dat
sultan, exh_a_s, exh_c_s, fbmp_a_s, fbmp_c_s, nto_b_tw, rbmp_a_s, rbmp_c_s, rf_a_s, rf_c_s, spl_a_s_b, spl_c_s_b, wg_l_a_s, wg_l_c_s