* Streamlined designs minimize the car's frontal area and reduce airflow
disruptions, resulting in less aerodynamic drag. Less drag means the car
experiences less resistance as it moves, requiring less energy to
overcome it hence improve fuel economy.
2. Lower weight:
* Lightweight cars require less energy to accelerate, brake, and maintain
momentum resulting in improved fuel efficiency. Every additional
100 kg of weight in a car can reduce fuel economy by 1-2%.
3. Efficient engine and transmission
Modern lightweight cars often combine their streamlined designs with
efficient engines (e.g., turbocharged gasoline engines or electric
motors) and fuel-efficient transmissions ( Continuously Variable
transmission or dual-clutch transmission ) further optimizing fuel
consumption , and reduce emissions as well.
