This Life Cycle Assessment (LCA) follows up on the findings of the WorldAutoSteel study, A New
Paradigm for Automotive Mass Benchmarking, which explored the current production vehicle data
provided in the A2Mac1 teardown database, and using statistical benchmarking regression models,
identified those components that were lighter than others of the same size and performance in the
database, called the efficient designs. This LCA compares the efficient steel and aluminium body
structure designs.