Aluminium Other Components in India unrivalled strength-to-weight ratio makes it ideal for use in transportation. Because of its reduced weight, the vehicle moves with less effort, which increases fuel economy. Although not the strongest metal, aluminium can be made stronger by alloying with other metals. Since it resists corrosion, there is no need for cumbersome anti-corrosion coatings, which are also expensive. Although steel is still largely used in the auto industry, aluminum is now widely used due to efforts to improve fuel efficiency and lower CO2 emissions. By 2025, the average amount of aluminium in cars is expected to rise by 60%, according to experts.