[Patrick]

Try This

PS: Whole Code are included there Enjoy!

pawn Код:

new TaxiCar[4];
public OnFilterscriptInit()//can be also change into OnGameModeInit if you want to add it to your gamemode
{
    TaxiCar[0] = AddStaticVehicleEx(420,-1970.5817,102.6015,27.4704,88.1076,-1, -1, 40000);//Taxi/*Taxi*/
    TaxiCar[1] = AddStaticVehicleEx(420,-1970.4128,84.7318,27.4523,90.8564,-1, -1, 40000);//Taxi/*Taxi*/
    TaxiCar[2] = AddStaticVehicleEx(420,-1970.2133,89.0358,27.4672,88.8046,-1, -1, 40000);//Taxi //CAR ID 85/*Taxi*/
    TaxiCar[3] = AddStaticVehicleEx(420,-1970.7659,98.5678,27.4736,89.6067,-1,-1,40000);//Taxi
    return 1;
}
public OnPlayerStateChange(playerid, newstate, oldstate)
{   
    if(newstate == PLAYER_STATE_DRIVER || newstate == PLAYER_STATE_PASSENGER)
    {
        if(PlayerInfo[playerid][pMember] == 10 || PlayerInfo[playerid][pLeader] == 10)
        {
            if(PlayerInfo[playerid][pRank] < 4)
            {
                if(GetPlayerVehicleID(playerid) == TaxiCar[0] || GetPlayerVehicleID(playerid) == TaxiCar[1])
                {
                    SendClientMessage(playerid, COLOR_GREY, "Your Rank is to Low !");
                    RemovePlayerFromVehicle(playerid);
                }
            }
        }
    }
    return 1;
}

Cheers
PDS2012