Vehicles in this configuration transmit engine power solely to the rear axle. A classic example is a pickup truck carrying a heavy load in its bed. This setup allows for greater traction in such scenarios compared to vehicles that power all wheels equally.
This drivetrain offers advantages in specific situations. Increased traction under load, simpler mechanical design leading to lower manufacturing and maintenance costs, and a tighter turning radius are key benefits. Historically, this system was the standard for most vehicles and remains prevalent in many commercial applications due to its robustness and efficiency.