ADDON 
carcols line:
hiroiku, 36,36, 14,14, 14,36, 43,43, 43,36, 121,121, 121,36, 122,122, 122,36, 123,123, 123,36, 125,125, 125,36, 20,20, 20,36, 25,25, 25,36, 55,55, 55,36

cargrp.dat lines:
Type "hiroiku" in:
# POPCYCLE_GROUP_BEACHFOLK
# POPCYCLE_GROUP_PARKFOLK
# POPCYCLE_GROUP_CASUAL_AVERAGE
# POPCYCLE_GROUP_CASUAL_POOR
# Cheat1 (shit cars)

carmods.dat line:
hiroiku, nto_b_s, nto_b_s, nto_b_tw

handling.cfg line:
HIROIKU        1600.0    3300.0   2.2    0.0 0.0  0.0  70  0.70 0.8  0.54 	4 160.0 18.0 7.0  R P 	5.4   0.60 0 30.0  	1.1  0.14  0.0   0.32 -0.14 0.5  0.0		0.26 0.54 19000 	0			0			0  3	0

vehicles.ide line:
ID, 	hiroiku, 	hiroiku, 	car, 	HIROIKU,	 HIROIKU, 	null,	normal,		10, 	0,	0,		-1, 0.7, 0.7,		0

====================================
gtasa_vehicleAudioSettings.cfg line:
hiroiku                                     0             8      7      0         0.7          1.0          1         0.943874     2           0          4          0           45                0.0