Curb weight refers to the weight of a vehicle in its standard configuration, without passengers or cargo, but with all necessary fluids (such as fuel, engine oil, coolant, etc.) fully filled, and equipped with a spare tire and standard tools. It is a key parameter for measuring the basic weight of a vehicle, reflecting the structural weight of the vehicle itself and the minimum weight required to achieve its basic functions.

Curb weight is an important metric in evaluating vehicle performance, directly affecting fuel consumption, acceleration, braking distance, and suspension system design. Vehicles with higher curb weight typically require more powerful engines to provide adequate power, while a lower curb weight contributes to improved fuel economy and agility.