This example demonstrates a minimal JavaScript module system in action, showing how a Car class with a color property and a counter is imported and used. The code defines a Car constructor function that initializes a red car by default, with a `roule` method that increments the counter by the given kilometers. A separate file requires the Car module, creates a green car instance named titine, and calls `roule(5)` to add five kilometers to its counter. The example relies on Node.js’s `require` and `module.exports` APIs to handle module loading and export.