сделать ето не сложно удалив некоторые строки в однов ява -файле автомобиля 
 вот пример  нужен файл типа Prime_VT.java 
 вот например содержание такого типа 
 package java.game.cars; 
 import java.game.*; 
 public class Prime_VT extends VehicleType 
 { 
 	public Prime_VT( int id ) 
 	{ 
 		VehicleModel vmd; 
 		prevalence = 0.0; 
 		// DLH 500 // 
 		vmd=new VehicleModel( cars.racers.mazdamx5:0x00000006r, VS_USED ); 
 		vtdarr.addElement( vmd ); 
 		vmd.prevalence = 5000.0; 
 vmd.minPower	= 0.5;	vmd.maxPower	= 1.5; 
 		vmd.minOptical	= 0.35;	vmd.maxOptical	= 1.5; 
 		vmd.minTear	= 0.25;	vmd.maxTear	= 1.0; 
 		vmd.minWear	= 0.25;	vmd.maxWear	= 1.0; 
 		vmd.stockPrestige=876;	vmd.fullPrestige= 982; 
 		vmd.stockQM = qm_stock_Prime_DLH_500;	vmd.fullQM = qm_full_Prime_DLH_500; 
 		vmd.vehicleName = "MAZDA MX-5"; 
 		prevalence += vmd.prevalence; 
 vmd.addColorIndex(GameLogic.RID_CARCOLOR_Used_Rusty_Cherry); 
 		vmd.addColorIndex(GameLogic.RID_CARCOLOR_Used_Rusty_Smaragd); 
 		vmd.addColorIndex(GameLogic.RID_CARCOLOR_Used_Rusty_Nacht); 
 		vmd.addColorIndex(GameLogic.RID_CARCOLOR_Used_Rusty_Zucker); 
 // DLH 500 // 
 		vmd=new VehicleModel( cars.racers.mazdamx5:0x00000006r, VS_STOCK ); 
 		vtdarr.addElement( vmd ); 
 		vmd.prevalence = 5000.0; 
 		vmd.stockPrestige=976;	vmd.fullPrestige= 1182; 
 		vmd.stockQM = qm_stock_Prime_DLH_500;	vmd.fullQM = qm_full_Prime_DLH_500; 
 		vmd.vehicleName = "MAZDA MX-5"; 
 		prevalence += vmd.prevalence; 
 // DLH 500 // 
 		vmd=new VehicleModel( cars.racers.mazdamx5:0x00000606r, VS_STOCK ); 
 		vtdarr.addElement( vmd ); 
 		vmd.prevalence = 15000.0; 
 		vmd.stockPrestige=976;	vmd.fullPrestige= 1182; 
 		vmd.stockQM = qm_stock_Prime_DLH_500;	vmd.fullQM = qm_full_Prime_DLH_500; 
 		vmd.vehicleName = "MAZDA MX-5 race"; 
 		prevalence += vmd.prevalence; 
 // DLH 500 // 
 		vmd=new VehicleModel( cars.racers.mazdamx5:0x00000606r, VS_USED ); 
 		vtdarr.addElement( vmd ); 
 		vmd.prevalence = 17000.0; 
 vmd.minPower	= 0.5;	vmd.maxPower	= 1.5; 
 			vmd.minOptical	= 0.35;	vmd.maxOptical	= 1.5; 
 			vmd.minTear	= 0.25;	vmd.maxTear	= 1.0; 
 			vmd.minWear	= 0.25;	vmd.maxWear	= 1.0; 
 		vmd.stockPrestige=976;	vmd.fullPrestige= 1182; 
 		vmd.stockQM = qm_stock_Prime_DLH_500;	vmd.fullQM = qm_full_Prime_DLH_500; 
 		vmd.vehicleName = "MAZDA MX-5 race"; 
 		prevalence += vmd.prevalence; 
 vmd.addColorIndex(GameLogic.RID_CARCOLOR_Used_Rusty_Cherry); 
 		vmd.addColorIndex(GameLogic.RID_CARCOLOR_Used_Rusty_Smaragd); 
 		vmd.addColorIndex(GameLogic.RID_CARCOLOR_Used_Rusty_Nacht); 
 		vmd.addColorIndex(GameLogic.RID_CARCOLOR_Used_Rusty_Zucker); 
 
 // DLH 500 // 
 		vmd=new VehicleModel( cars.racers.mazdamx5:0x00000006r, VS_NRACE ); 
 		vtdarr.addElement( vmd ); 
 		vmd.minPower = 2.0;	vmd.maxPower	= 2.0; 
 		vmd.prevalence = 650.0; 
 		vmd.stockPrestige=876;	vmd.fullPrestige= 982; 
 		vmd.stockQM = qm_stock_Prime_DLH_500;	vmd.fullQM = qm_full_Prime_DLH_500; 
 		vmd.vehicleName = "MAZDA MX-5"; 
 
 // DLH 500 // 
 vmd=new VehicleModel( cars.racers.mazdamx5:0x00000006r, VS_RRACE ); 
 		vtdarr.addElement( vmd ); 
 		vmd.minPower = 2.0;	vmd.maxPower	= 2.0; 
 		vmd.prevalence = 450.0; 
 		vmd.stockPrestige=876;	vmd.fullPrestige= 982; 
 		vmd.stockQM = qm_stock_Prime_DLH_500;	vmd.fullQM = qm_full_Prime_DLH_500; 
 		vmd.vehicleName = "MAZDA MX-5"; 
 
 // DLH 500 // 
 vmd=new VehicleModel( cars.racers.mazdamx5:0x00000006r, VS_DRACE ); 
 		vtdarr.addElement( vmd ); 
 		vmd.minPower = 2.0;	vmd.maxPower	= 2.0; 
 		vmd.prevalence = 550.0; 
 		vmd.stockPrestige=876;	vmd.fullPrestige= 982; 
 		vmd.stockQM = qm_stock_Prime_DLH_500;	vmd.fullQM = qm_full_Prime_DLH_500; 
 		vmd.vehicleName = "MAZDA MX-5"; 
 		// make color indexes // 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Reflex); 
 addColorIndex(GameLogic.RID_CARCOLOR_Baiern_Devils_eye_red); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Baiern_Spring_yellow); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Zucker); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Tornado_rot); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Nacht); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Hamvas_Grun); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Indigo); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Jazz); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Antracit); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Mercator_Blau); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Murano); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Champagner); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Ozean); 
 		addColorIndex(GameLogic.RID_CARCOLOR_Einvagen_Saratoga); 
 
 //		prevalence *= 1000.0; 
 	} 
 } 
 удалить необходимо абзацы с содержанием VS_NRACE VS_RRACE .. 
 чтобы остались только vs_used и vs_stock