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Java: Inner classes - How to have access to inner class variables

Software Software
Last Modified: 2020-03-10
I have a class car and an inner class engine. The inner class shouldn't be visible outside of the class car.
Is there still a way to give a Car an Engine as parameter?
Error: Car.Engine has private access in Car
Here is my code:

public class Main {
    public static void main(String[] args) {
        Car car = new Car("VW", "Red", new Car.Engine("Diesel"));

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public class Car {
    private String brand;
    private String color;
    private Engine engine;

    public Car(String brand, String color, Engine engine){

    public Engine getEngineType(){
        return new Engine(engine.getType());

    public void setEngine(Engine engine){

    private class Engine{
        private String type;

        public Engine(String type){

        public String getType() {
            return type;

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