public int availableCars(String typeOfCar){
		int counter = 0;
		for(int i = 0; i < CARS.size(); i++){ 
			if (typeOfCar.equals(typeOfCar) && carRented == false){
		    	counter++;
		    } else {
		    	return 0;
		    }
		}
		return counter;
	}