ABSTRACT
With increasingly fierce competition in the automobile industry, automobile manufacturers continue to market new models, new models in addition to outstanding safety, cost-effective, fashionable, and other characteristics, mainly directed at competitive economy car driving. In the past 20 years, car manufacturers have been looking for ways to solve the problem; the test proved that the use of new light metal materials to achieve lightweight body, to improve the economy of cars is effective. At the same time, reduce the quality of vehicle can make a variety of performance vehicles to improve and improve. Studies have shown that when the vehicle mass reduced by 10%, the fuel economy is improved by 3.8%, accelerating time to reduce 8%, CO emissions by 4.5%, 5% reduction in braking distance, tire life increased by 7% 6% reduction in steering effort. This shows the importance of lightweight vehicles.
