Mine

//in the top :)
new vehicle;
new VehicleID;
public OnPlayerCommandText(playerid)
{
	if(strcmp(cmd, "/mod", true) == 0)
	{
		VehicleID = GetPlayerVehicleID(playerid);
		tmp = strtok(cmdtext, idx);
		if(!strlen(tmp))
		{
			if (VehicleID == vehicle)
			{
				SendClientMessage(playerid, COLOR_RED, "Please type: /mod ID");
				SendClientMessage(playerid, COLOR_RED, "[ID 1 = Nitro] [ID 2 = Hydraulics] [ID 3 = Offroad Wheels]");
				SendClientMessage(playerid, COLOR_RED, "[ID 4 = Wire-Wheels] [ID 5 = Dollar Sign Wheels] [ID 6 = Spike Wheels]");
				SendClientMessage(playerid, COLOR_RED, "[ID 7 = Gold Spike Wheels] [ID 8 = Chrome Spike Wheels");
				return 1;
			}
			else
			{
				SendClientMessage(playerid, COLOR_RED, "This venhicle can't be modded sorry");
			}
		}
		if(strcmp(cmd, "/mod 1", true) == 0)
		{
		    if (VehicleID == vehicle)
		    {
		        AddVehicleComponent(vehicle, 1010);
		        SendClientMessage(playerid, COLER_WHITE, "You have purchased Nitro for $1000");
		        GivePlayerMoney(playerid,-1000);
		        return 1;
		    }
		}
		if(strcmp(cmd, "/mod 2", true) == 0)
		{
		    if (VehicleID == vehicle)
		    {
		        AddVehicleComponent(vehicle, 1087);
		        SendClientMessage(playerid, COLER_WHITE, "You have purchased Hydraulics for $1000");
		        GivePlayerMoney(playerid,-1000);
		        return 1;
		    }
		}
		if(strcmp(cmd, "/mod 3", true) == 0)
		{
		    if (VehicleID == vehicle)
		    {
		        AddVehicleComponent(vehicle, 1025);
		        SendClientMessage(playerid, COLER_WHITE, "You have purchased Offrade wheels for $1000");
		        GivePlayerMoney(playerid,-1000);
		        return 1;
		    }
		}
		if(strcmp(cmd, "/mod 4", true) == 0)
		{
		    if (VehicleID == vehicle)
		    {
		        AddVehicleComponent(vehicle, 1076);
		        SendClientMessage(playerid, COLER_WHITE, "You have purchased Wire-Wheels for $1000");
		        GivePlayerMoney(playerid,-1000);
		        return 1;
		    }
		}
		if(strcmp(cmd, "/mod 5", true) == 0)
		{
		    if (VehicleID == vehicle)
		    {
		        AddVehicleComponent(vehicle, 1083);
		        SendClientMessage(playerid, COLER_WHITE, "You have purchased Dollar Sign Wheels for $1000");
		        GivePlayerMoney(playerid,-1000);
		        return 1;
		    }
		}
		if(strcmp(cmd, "/mod 6", true) == 0)
		{
		    if (VehicleID == vehicle)
		    {
		        AddVehicleComponent(vehicle, 1085);
		        SendClientMessage(playerid, COLER_WHITE, "You have purchased Spike Wheels for $1000");
		        GivePlayerMoney(playerid,-1000);
		        return 1;
		    }
		}
		if(strcmp(cmd, "/mod 7", true) == 0)
		{
		    if (VehicleID == vehicle)
		    {
		        AddVehicleComponent(vehicle, 1074);
		        SendClientMessage(playerid, COLER_WHITE, "You have purchased Gold Spike Wheels for $1000");
		        GivePlayerMoney(playerid,-1000);
		        return 1;
		    }
		}
		if(strcmp(cmd, "/mod 8", true) == 0)
		{
		    if (VehicleID == vehicle)
		    {
		        AddVehicleComponent(vehicle, 1073);
		        SendClientMessage(playerid, COLER_WHITE, "You have purchased Chrome Spike Wheels for $1000");
		        GivePlayerMoney(playerid,-1000);
		        return 1;
		    }
		}
	}
	return 1;
}