Curb weight refers to the total weight of a vehicle when it is ready for operation but without any passengers or cargo. This weight includes all standard equipment, fluids like oil and fuel, and a full tank of gas. It provides a baseline for understanding how much the vehicle weighs when it is on the road. Knowing the curb weight is important for various reasons, including fuel efficiency and performance. It helps consumers compare different vehicles, such as sedans or SUVs, and can influence factors like handling and acceleration.