The engine can provide all the power in the world, but if it isn’t transferred to the wheels the vehicle will not move. Automobiles need to perform equally well under a variety of loads. The transfer of power needs to accommodate the conditions on the highway, the weight of the vehicle and its passengers, and the performance desired to accelerate. Today’s automobile buyers can choose between rear-wheel, front-wheel, four-wheel, or all-wheel drivetrains. This course will help you define the purpose of the drivetrain, identify drivetrain components, describe different types of drivetrains, and inspect drivetrain systems.