What are the advantages or disadvantages of steel vs aluminium cars?
Aluminium has some advantages over steel. Since it has a lower
density than iron or steel, a car body made from aluminium will be
lighter than the same car body made from steel. This results in
improved fuel economy. Also, aluminium does not corrode easily, so
a car body made from aluminium will corrode less, and may last
longer, than one made from steel.
However, aluminium is more expensive than steel. So a car made from
aluminium is likely to be more expensive than one made from
steel.