Because rear-wheel drive can generate greater thrust, and such vehicles are generally equipped with dual rear tires, which have greater friction with the ground.
Placing the engine at the rear of the vehicle allows for a sufficient luggage compartment to be set up under the middle of the vehicle body, making it very convenient to store luggage, and there is no need to worry about luggage falling or losing it during driving.
Since the engine is rear-mounted and does not need to occupy the front space, the chassis layout of the front part of the vehicle is more flexible, and the driving position can be set very low as needed, which can greatly reduce the driver's blind spot. The driving position of some long-distance luxury buses is even lower than that of some family cars, and with the flat body, even a behemoth can have a very good field of vision.
