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Why are cars made out of steel and not aluminum?

While steel is indeed widely used, aluminum is also extensively utilized in constructing automotive components due to its advantages

Cost: Compared to steel, aluminum has a higher processing and raw material cost, impacting consumer pricing to some extent. Nonetheless, its benefits regarding fuel efficiency, reduced emissions, and durability make it viable from a long-term investment perspective.

Durability: Aluminum does show remarkable resilience similar to certain grades of steel. For example, in crash tests, automobiles engineered with tailored aluminum have shown excellent performance at energy absorption and preserving cabin integrity. As a result, several automobile manufacturers now combine various steels and high-strength aluminum.