A drivetrain is a system in vehicles that transmits power from the engine to the wheels. It includes various components such as the transmission, driveshaft, differential, and axles. These parts work together to ensure that the vehicle moves efficiently and effectively. The drivetrain can be categorized into two main types: front-wheel drive and rear-wheel drive. In front-wheel drive vehicles, the engine's power is sent to the front wheels, while in rear-wheel drive vehicles, the power goes to the rear wheels. Understanding the drivetrain is essential for vehicle performance and handling.