The Metal That Drives Modern Cars
So, why all the fuss about aluminium? Well, it has become the darling of the automotive world for a very simple reason. It’s strong, yet it weighs about a third less than steel. In an age of ever tightening emissions standards, shedding weight is the name of the game. Lighter cars mean better fuel economy, and that keeps the regulators happy.
The great pivot to electric vehicles has only poured fuel on this fire. Batteries are fantastically heavy things, so carmakers are desperately trying to save weight everywhere else. Aluminium body panels, chassis parts, and structural components are no longer a luxury, they are a necessity. I remember when Ford switched the F-150 to an all aluminium body back in 2015. It was a bold, controversial move. Now, that very dependency has become its Achilles’ heel.