A drive train 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 convert the engine's power into motion, allowing the vehicle to move. The drive train 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, it is sent to the rear wheels. This configuration affects handling, traction, and overall driving experience.