class Car extends Vehicle {

	private double trunkSqFt = 0.0;

	public Car(String vin, String make, String model, double tSize) {
		super(vin, make, model);

		this.trunkSqFt = tSize;
	}

	@Override
	public String toString() {
		return String.format("%s,%s,%s,%f", 
			super.toString(), getMake(), getModel(), trunkSqFt);
	} 	
}