[Python] Pygame method not working in a simple OOP

I'm trying to create a simple Car class in Python using pygame, but my draw() method doesn't seem to work. The rectangle is not appearing on the screen.

import pygame

pygame.init()

class Car:
def __init__(self, x, y, color=(255, 0, 0), width=50, height=30):
self.x = x
self.y = y
self.color = color
self.width = width
self.height = height

def draw(self, screen):
pygame.draw.rect(screen, self.color, (self.x, self.y, self.width, self.height))

# Initialize pygame screen
screen = pygame.display.set_mode((500, 500))
clock = pygame.time.Clock()

car = Car(200, 200) # Create a car object

running = True

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