Is it considered overloading to have four people seated in the back row of a small car?

[MacRafael]

Having four people seated in the back row of a small car is considered overloading. Here are specific details about overloading: 1. Introduction: The standard seating capacity for a small car is five people—one driver, one front passenger, and a maximum of three people in the back seat. If the number of passengers exceeds 20% or more of the standard capacity, it is considered overloading. 2. Hazards: Overloading shortens the vehicle's lifespan and accelerates the aging of components. Cars are designed based on technical specifications, including load limits. Exceeding these limits alters the original design parameters; it accelerates tire wear and deformation. Car tires are designed and manufactured based on the vehicle's total weight, with a considerable safety margin. However, overloading increases the weight on the tires, causing deformation and increased friction, which shortens tire life; overloading also causes significant damage to the engine. The increased load leads to insufficient power. Prolonged low-speed driving causes the engine to overheat, accelerating component wear and increasing fuel consumption.