- Reduces air resistance: A streamlined design can help reduce air resistance, which is a major factor in fuel consumption. Air resistance increases as the square of the vehicle's speed, so a 10% reduction in drag can lead to a 2% improvement in fuel economy.
- Less wind noise: A streamlined design can also reduce wind noise. Wind noise can increase driver fatigue, decrease fuel economy.
- Aerodynamics improves engine cooling: A streamlined design helps airflow around the engine, improving engine cooling. Keeping the engine cool allows it to run more efficiently and use less fuel.
- Less rolling resistance: A streamlined design can also help reduce rolling resistance. Rolling resistance is the force that opposes the motion of a wheel, and it increases with the vehicle's speed. Reducing rolling resistance can improve fuel economy by up to 5%.
- Engine efficiency: Streamlined designs can also reduce the weight of the vehicle, which can lead to improved engine efficiency. Engine efficiency is the percentage of fuel energy utilized to create mechanical work. Improved engine efficiency means less fuel is required to produce the same amount of power.
