diff --git a/README.md b/README.md
new file mode 100644
index 00000000..2f462c58
--- /dev/null
+++ b/README.md
@@ -0,0 +1,47 @@
+# 자동차 경주 - 초간단 애플리케이션
+
+## [1] 움직이는 자동차
+
+- 자동차에 관한 요구사항
+  - [x] 자동차는 이름을 가지고 있다.
+  - [x] 자동차는 움직일 수 있다.
+    - [x] 0에서 9 사이의 random 값을 구해 그 값이 **4 이상이면 전진**하고, **3 이하 값이면 멈춘다**.
+
+---
+
+## [2] 우승 자동차 구하기
+
+- 기능 요구사항
+  - [x] n대의 자동차 참여 가능
+  - [x] 주어진 횟수동안 n대의 자동차는 전진 또는 멈출 수 있다.
+    - [x] 이동 조건은 앞의 [움직이는 자동차]와 동일
+  - [x] 경주 게임 완료 후 우승자를 구할 수 있다.
+    - [x] 우승자는 한 명 이상일 수 있다. 
+
+---
+
+## [3] 게임 실행
+
+- 기능 요구사항
+  - [x] 자동차 및 게임 방법은 앞의 [움직이는 자동차], [우승 자동차 구하기]와 동일
+  - [x] 사용자로부터 `이름`, `게임횟수` 를 입력받는다.
+    - [x] 자동차 이름은 쉼표(,) 기준으로 구분하며, 이름은 5자 이하만 가능하다.
+  - [x] 메인 메서드를 추가하여 실행 가능하게 만든다.
+ 
+---
+
+## [4] 리팩터링
+
+- 요구사항
+  - [x] 단위 테스트를 구현한다.
+
+---
+
+- 코드 작성 요구사항
+  - [x] 자동차가 움직이는 기능이 의도대로 되는지 테스트한다.
+  - [x] 자바 코드 컨벤션 `Java Style Guide` 원칙으로 프로그래밍한다.
+  - [x] 3항 연산자를 쓰지 않는다.
+  - [x] else 예약어를 쓰지 않는다.
+  - [x] switch/case도 사용하지 않는다.
+  - [x] 함수(또는 메서드) 길이가 15라인을 넘어가지 않도록 구현한다.
+    - [x] 함수(또는 메서드)가 한 가지 일만 하도록 한다. 
diff --git a/src/main/java/App.java b/src/main/java/App.java
new file mode 100644
index 00000000..3000b3c5
--- /dev/null
+++ b/src/main/java/App.java
@@ -0,0 +1,10 @@
+import controller.RacingGameController;
+
+public class App {
+    public static void main(String[] args) {
+        RacingGameController racingGameController = new RacingGameController();
+
+        racingGameController.startRacingGame();
+
+    }
+}
diff --git a/src/main/java/controller/RacingGameController.java b/src/main/java/controller/RacingGameController.java
new file mode 100644
index 00000000..358b39c9
--- /dev/null
+++ b/src/main/java/controller/RacingGameController.java
@@ -0,0 +1,45 @@
+package controller;
+
+import domain.Car;
+import domain.CarNameParser;
+import domain.CarRaceGame;
+import java.util.List;
+import view.inputView;
+import view.outputView;
+
+public class RacingGameController {
+
+    public void startRacingGame() {
+        String carNames = inputView.enterCarNames();
+        List<Car> cars = CarNameParser.parseCarName(carNames);
+        final CarRaceGame carRaceGame = new CarRaceGame(cars);
+
+        int round = inputView.enterRoundNumber();
+
+        outputView.printGameResultTitle();
+
+        printGameRounds(carRaceGame, round, cars);
+
+        printWinners(carRaceGame);
+    }
+
+    private void printGameRounds(CarRaceGame carRaceGame, int round, List<Car> cars) {
+        carRaceGame.validateRoundNumber(round);
+
+        for (int i = 0; i < round; i++) {
+
+            carRaceGame.playOneRound();
+            System.out.println();
+            outputView.printRoundResult(cars);
+        }
+    }
+
+
+    private void printWinners(CarRaceGame carRaceGame) {
+
+        List<String> winnersName = carRaceGame.getWinnerNames();
+
+        outputView.printGameWinners(winnersName);
+
+    }
+}
diff --git a/src/main/java/domain/Car.java b/src/main/java/domain/Car.java
new file mode 100644
index 00000000..16a01c54
--- /dev/null
+++ b/src/main/java/domain/Car.java
@@ -0,0 +1,42 @@
+package domain;
+
+import domain.generator.NumberGenerator;
+
+public class Car {
+
+    private final String name;
+    private int position;
+    private final NumberGenerator generator;
+    private static final int MOVE_THRESHOLD = 4;
+
+    public Car(String name, NumberGenerator generator) {
+        validateName(name);
+        this.name = name.trim();
+        this.position = 0;
+        this.generator = generator;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getPosition() {
+        return position;
+    }
+
+    private void validateName(String name) {
+
+        if (name == null || name.isBlank()) {
+            throw new IllegalArgumentException("이름은 빈 값이 될 수 없습니다.");
+        }
+        if (name.length() > 5) {
+            throw new IllegalArgumentException("이름은 5자 이하만 가능합니다.");
+        }
+    }
+
+    public void movePosition() {
+        if (generator.generate() >= MOVE_THRESHOLD ) {
+            position++;
+        }
+    }
+}
diff --git a/src/main/java/domain/CarNameParser.java b/src/main/java/domain/CarNameParser.java
new file mode 100644
index 00000000..19e410af
--- /dev/null
+++ b/src/main/java/domain/CarNameParser.java
@@ -0,0 +1,35 @@
+package domain;
+
+import domain.generator.RandomNumberGenerator;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+public class CarNameParser {
+
+    public static final String CAR_NAME_DELIMITER = ",";
+
+    public static List<Car> parseCarName(String carNames) {
+
+        List<String> carNameList = Arrays.stream(carNames.split(CAR_NAME_DELIMITER))
+                .map(String::trim)
+                .collect(Collectors.toList());
+
+        validateDuplicateCarName(carNameList);
+
+        return carNameList.stream()
+                .map(name -> new Car(name.trim(), new RandomNumberGenerator()))
+                .collect(Collectors.toList());
+    }
+
+    private static void validateDuplicateCarName(List<String> carNameList) {
+
+        Set<String> uniqueCarNames = new HashSet<>(carNameList);
+
+        if (uniqueCarNames.size() != carNameList.size()) {
+            throw new IllegalArgumentException("중복된 자동차 이름은 입력할 수 없습니다.");
+        }
+    }
+}
diff --git a/src/main/java/domain/CarRaceGame.java b/src/main/java/domain/CarRaceGame.java
new file mode 100644
index 00000000..249c7354
--- /dev/null
+++ b/src/main/java/domain/CarRaceGame.java
@@ -0,0 +1,57 @@
+package domain;
+
+import java.util.List;
+
+public class CarRaceGame {
+
+    private final List<Car> cars;
+
+    public CarRaceGame(List<Car> cars) {
+        this.cars = cars;
+    }
+
+    public void validateRoundNumber(int gameRound) {
+        if (gameRound < 1 ) {
+            throw new IllegalArgumentException("라운드는 한 번 이상 진행되어야 합니다.");
+        }
+    }
+
+    public void playOneRound() {
+        for (Car car : cars) {
+            car.movePosition();
+        }
+    }
+
+    private int getMaxDistance() {
+        int maxDistance = cars.stream()
+                .mapToInt(Car::getPosition)
+                .max()
+                .orElseThrow();
+
+        return maxDistance;
+    }
+
+    private List<String> getWinners(int maxDistance) {
+        return cars.stream()
+                .filter(car -> car.getPosition() == maxDistance)
+                .map(Car::getName)
+                .toList();
+    }
+
+    public void playRacingGame(int gameRound) {
+        validateRoundNumber(gameRound);
+
+        for (int i=0; i < gameRound;i++) {
+            playOneRound();
+        }
+    }
+
+    public List<String> getWinnerNames() {
+        List<String> winners = getWinners(getMaxDistance());
+
+        if (winners == null) {
+            throw new IllegalStateException("게임이 실행되지 않았습니다.");
+        }
+        return winners;
+    }
+}
diff --git a/src/main/java/domain/generator/NumberGenerator.java b/src/main/java/domain/generator/NumberGenerator.java
new file mode 100644
index 00000000..8904aa58
--- /dev/null
+++ b/src/main/java/domain/generator/NumberGenerator.java
@@ -0,0 +1,5 @@
+package domain.generator;
+
+public interface NumberGenerator {
+    int generate();
+}
diff --git a/src/main/java/domain/generator/RandomNumberGenerator.java b/src/main/java/domain/generator/RandomNumberGenerator.java
new file mode 100644
index 00000000..10398566
--- /dev/null
+++ b/src/main/java/domain/generator/RandomNumberGenerator.java
@@ -0,0 +1,13 @@
+package domain.generator;
+
+import java.util.Random;
+
+public class RandomNumberGenerator implements NumberGenerator {
+
+    private static final Random RANDOM = new Random();
+
+    @Override
+    public int generate( ) {
+        return RANDOM.nextInt( 10 );
+    }
+}
diff --git a/src/main/java/view/inputView.java b/src/main/java/view/inputView.java
new file mode 100644
index 00000000..bea263cb
--- /dev/null
+++ b/src/main/java/view/inputView.java
@@ -0,0 +1,18 @@
+package view;
+
+import java.util.Scanner;
+
+public class inputView {
+
+    private static final Scanner scanner = new Scanner(System.in);
+
+    public static String enterCarNames() {
+        System.out.println("경주할 자동차 이름을 입력하세요(이름은 쉼표(,)를 기준으로 구분).");
+        return scanner.nextLine();
+    }
+
+    public static int enterRoundNumber() {
+        System.out.println("시도할 회수는 몇회인가요?");
+        return scanner.nextInt();
+    }
+}
diff --git a/src/main/java/view/outputView.java b/src/main/java/view/outputView.java
new file mode 100644
index 00000000..c1ed5b0d
--- /dev/null
+++ b/src/main/java/view/outputView.java
@@ -0,0 +1,26 @@
+package view;
+
+import domain.Car;
+
+import java.util.List;
+
+public class outputView {
+
+    private static final String CAR_POSITION_EXPRESSION = "-";
+    private static final String WINNER_NAMES_DELIMITER = ",";
+
+    public static void printGameResultTitle() {
+        System.out.print("\n실행 결과");
+    }
+
+    public static void printRoundResult(List<Car> cars) {
+        for (Car car : cars) {
+            System.out.println(car.getName() + ": " + CAR_POSITION_EXPRESSION.repeat(car.getPosition()));
+        }
+        System.out.println();
+    }
+
+    public static void printGameWinners(List<String> winners) {
+        System.out.println(String.join(WINNER_NAMES_DELIMITER, winners) + "가 최종 우승했습니다.");
+    }
+}
diff --git a/src/test/java/domain/CarNameParserTest.java b/src/test/java/domain/CarNameParserTest.java
new file mode 100644
index 00000000..606374cc
--- /dev/null
+++ b/src/test/java/domain/CarNameParserTest.java
@@ -0,0 +1,59 @@
+package domain;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import java.util.List;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+public class CarNameParserTest {
+
+    @Nested
+    @DisplayName("입력된 문자열은 구분자로 나누어 차의 이름이 된다.")
+    class ParseCarNameTest {
+
+        @Test
+        @DisplayName("공백없이 들어왔을 경우")
+        public void parseCarName_문자열을입력하면_차이름리스트가생성된다() {
+
+            // given
+            String carNames = "차1,차2,차3";
+
+            // when
+            List<Car> cars = CarNameParser.parseCarName(carNames);
+
+            // then
+            assertThat(cars).extracting(Car::getName).containsExactly("차1", "차2", "차3");
+
+        }
+
+        @Test
+        @DisplayName("공백 포함해 들어왔을 경우")
+        public void parseCarName_구분자기준으로공백이포함된경우_공백제거후차이름리스트가생성된다() {
+
+            // given
+            String carNames = "차1  , 차2,차3  ";
+
+            // when
+            List<Car> cars = CarNameParser.parseCarName(carNames);
+
+            // then
+            assertThat(cars).extracting(Car::getName).containsExactly("차1", "차2", "차3");
+
+        }
+    }
+
+    @Test
+    @DisplayName("입력된 차들의 이름은 중복이 없어야 한다.")
+    public void parseCarName_중복된차이름_예외처리() {
+        // given
+        CarNameParser carNameParser = new CarNameParser();
+        String carNames = "차1,차1,차3";
+
+        assertThatThrownBy(() -> carNameParser.parseCarName(carNames))
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessageContaining("중복된 자동차 이름은 입력할 수 없습니다.");
+    }
+}
diff --git a/src/test/java/domain/CarRaceGameTest.java b/src/test/java/domain/CarRaceGameTest.java
new file mode 100644
index 00000000..d740fffe
--- /dev/null
+++ b/src/test/java/domain/CarRaceGameTest.java
@@ -0,0 +1,111 @@
+package domain;
+
+import domain.generator.FixedNumberGenerator;
+import domain.generator.NumberGenerator;
+import domain.generator.RandomNumberGenerator;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+import java.util.List;
+import java.util.ArrayList;
+
+public class CarRaceGameTest {
+
+    private List<Car> createCars(NumberGenerator... generators) {
+        List<Car> cars = new ArrayList<>();
+        for (int i = 0; i < generators.length; i++) {
+            cars.add(new Car("차" + (i + 1), generators[i]));
+        }
+        return cars;
+    }
+
+    @Nested
+    @DisplayName("게임 라운드는 1 이상의 정수만 입력할 수 있다.")
+    class CarRaceGameRoundNumberTest {
+
+        @ParameterizedTest
+        @ValueSource(ints = {0, -4})
+        void playRacingGame_게임라운드0이하_예외처리(int gameRound) {
+            List<Car> cars = createCars(
+                    new RandomNumberGenerator(),
+                    new RandomNumberGenerator(),
+                    new RandomNumberGenerator()
+            );
+
+            CarRaceGame game = new CarRaceGame(cars);
+
+            assertThatThrownBy(() -> game.playRacingGame(gameRound))
+                    .isInstanceOf(IllegalArgumentException.class)
+                    .hasMessageContaining("라운드는 한 번 이상 진행되어야 합니다.");
+        }
+    }
+
+    @Nested
+    @DisplayName("게임이 정상적으로 진행된 경우, 결과도 정상적으로 출력되어야 한다.")
+    class CarRaceGamePrintResultTest {
+
+        @Test
+        void playRacingGame_우승자한명_정상출력() {
+            List<Car> cars = createCars(
+                    new FixedNumberGenerator(9, 6, 4, 2, 5),
+                    new FixedNumberGenerator(0, 2, 2, 1, 3),
+                    new FixedNumberGenerator(1, 2, 5, 0, 9)
+            );
+
+            CarRaceGame game = new CarRaceGame(cars);
+            game.playRacingGame(5);
+
+            assertThat(game.getWinnerNames()).containsOnly("차1");
+        }
+
+        @Test
+        void playRacingGame_우승자두명_정상출력() {
+            List<Car> cars = createCars(
+                    new FixedNumberGenerator(1, 8, 7),
+                    new FixedNumberGenerator(0, 9, 2),
+                    new FixedNumberGenerator(7, 2, 5)
+            );
+
+            CarRaceGame game = new CarRaceGame(cars);
+            game.playRacingGame(3);
+
+            assertThat(game.getWinnerNames()).containsOnly("차1", "차3");
+        }
+
+        @Test
+        void playRacingGame_참여자모두가우승자인경우_정상출력() {
+            List<Car> cars = createCars(
+                    new FixedNumberGenerator(3, 1, 7, 9),
+                    new FixedNumberGenerator(0, 4, 2, 8),
+                    new FixedNumberGenerator(7, 2, 5, 1)
+            );
+
+            CarRaceGame game = new CarRaceGame(cars);
+            game.playRacingGame(4);
+
+            assertThat(game.getWinnerNames()).containsOnly("차1", "차2", "차3");
+
+        }
+
+        @Test
+        void playRacingGame_모든참여자가전진하지못한경우_정상출력() {
+            List<Car> cars = createCars(
+                    new FixedNumberGenerator(3, 0, 2, 1),
+                    new FixedNumberGenerator(0, 3, 1, 1),
+                    new FixedNumberGenerator(0, 1, 0, 1)
+            );
+
+            CarRaceGame game = new CarRaceGame(cars);
+            game.playRacingGame(4);
+
+            assertThat(game.getWinnerNames()).containsOnly("차1", "차2", "차3");
+
+        }
+    }
+}
diff --git a/src/test/java/domain/CarTest.java b/src/test/java/domain/CarTest.java
new file mode 100644
index 00000000..8da45a57
--- /dev/null
+++ b/src/test/java/domain/CarTest.java
@@ -0,0 +1,116 @@
+package domain;
+
+import domain.generator.FixedNumberGenerator;
+import domain.generator.NumberGenerator;
+import domain.generator.RandomNumberGenerator;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+public class CarTest {
+
+    @Nested
+    @DisplayName("Car 객체가 생성된다.")
+    class CarCreateTest{
+
+        @Test
+        void Car_객체생성() {
+
+            // given
+            NumberGenerator generator = new RandomNumberGenerator();
+            Car car = new Car("붕붕이", generator);
+
+            // when
+            assertThat(car.getName()).isEqualTo("붕붕이");
+            assertThat(car.getPosition()).isEqualTo(0);
+        }
+    }
+
+    @Nested
+    @DisplayName("Car 객체의 이름으로 입력된 값을 검증한다.")
+    class CarNameTest{
+
+        @Test
+        void Car_이름중복제거() {
+
+            String carName = "  붕붕이";
+            // given
+            NumberGenerator generator = new RandomNumberGenerator();
+            Car car = new Car(carName, generator);
+
+            assertThat(car.getName()).isEqualTo(carName.trim());
+        }
+
+        @ParameterizedTest
+        @ValueSource(strings = {"", " "})
+        void Car_이름빈값일경우_예외처리(String name) {
+
+            NumberGenerator generator = new RandomNumberGenerator();
+
+            assertThatThrownBy(() -> new Car(name,generator))
+                    .isInstanceOf(IllegalArgumentException.class)
+                    .hasMessageContaining("이름은 빈 값이 될 수 없습니다.");
+        }
+
+        @Test
+        void Car_이름null값인경우_예외처리() {
+
+            String name = null;
+            NumberGenerator generator = new RandomNumberGenerator();
+
+            assertThatThrownBy(() -> new Car(name,generator))
+                    .isInstanceOf(IllegalArgumentException.class)
+                    .hasMessageContaining("이름은 빈 값이 될 수 없습니다.");
+        }
+    }
+
+    @Nested
+    @DisplayName("Car 객체가 요구사항에 맞게 이동한다.")
+    class CarPositionTest{
+
+        @Test
+        void getRandomNumber_랜덤숫자기준충족() {
+
+            NumberGenerator generator = new RandomNumberGenerator();
+
+            Car car = new Car("차1",generator);
+            assertThat(generator.generate())
+                    .isGreaterThanOrEqualTo(   0)
+                    .isLessThanOrEqualTo(   9);
+        }
+
+        @Test
+        void movePosition_랜덤숫자4이상일때_1이동() {
+
+            NumberGenerator generator = new FixedNumberGenerator(5);
+
+            // given
+            Car car = new Car("차2", generator);
+
+            // when
+            car.movePosition();
+
+            // then
+            assertThat(car.getPosition()).isEqualTo(1);
+        }
+
+        @Test
+        void movePosition_랜덤숫자4미만일때_정지() {
+
+            // given
+            NumberGenerator generator = new FixedNumberGenerator(2);
+            Car car = new Car("차3", generator);
+
+            // when
+            car.movePosition();
+
+            // then
+            assertThat(car.getPosition()).isEqualTo(0);
+        }
+    }
+}
diff --git a/src/test/java/domain/generator/FixedNumberGenerator.java b/src/test/java/domain/generator/FixedNumberGenerator.java
new file mode 100644
index 00000000..e6404d07
--- /dev/null
+++ b/src/test/java/domain/generator/FixedNumberGenerator.java
@@ -0,0 +1,16 @@
+package domain.generator;
+
+public class FixedNumberGenerator implements NumberGenerator {
+    private final int[] numbers;
+    private int index = 0;
+
+    public FixedNumberGenerator(int... numbers) {
+        this.numbers = numbers;
+    }
+
+    @Override
+    public int generate() {
+        return numbers[index++];
+    }
+
+}