new RentCar[10]; //10 rentable cars

public OnGameModeInit()
{
RentCar[0] = CreateVehicle(.......);
RentCar[1] = CreateVehicle(.......);
RentCar[2] = CreateVehicle(.......);
RentCar[3] = CreateVehicle(.......);
RentCar[4] = CreateVehicle(.......);
RentCar[5] = CreateVehicle(.......);
RentCar[6] = CreateVehicle(.......);
RentCar[7] = CreateVehicle(.......);
RentCar[8] = CreateVehicle(.......);
RentCar[9] = CreateVehicle(.......);
}

public OnPlayerStateChange(playerid,newstate,oldstate)
{
new vehicleid = GetPlayerVehicleID(playerid);
        
                     for(new i=0; i<sizeof(RentCar); i++)
             {
                     if (vehicleid == RentCar[i]) {
                     TogglePlayerControllable(playerid, 0);
                     SendClientMessage(playerid, COLOR_COLOR,"Would you like to rent this vehicle? Type /rentveh or /exit");
                     }
                }



return 1;
}

if(strcmp(cmd,"/exit",true)==0)
        {
                     for(new i=0; i<sizeof(RentCar); i++)
             {
                     if (GetPlayerVehicleID(playerid) == RentCar[i]) {
                     RemovePlayerFromVehicle(playerid);
                     }
                     }
        return 1; 
        }

        if(strcmp(cmd,"/rentveh",true)==0)
        {
                     for(new i=0; i<sizeof(RentCar); i++)
             {
                     if (GetPlayerVehicleID(playerid) == RentCar[i]) {
                     TogglePlayerControllable(playerid, 1);
                     GivePlayerMoney(playerid, -5000);
                     SendClientMessage(playerid, COLOR_COLOR,"You have rent this vehicle");
                     }
                     }
        return 1; 
        }