I saw this in Design News. This new process is targeted at automotive body and structural components. If Tesla is a customer it looks like this could bring down the price of the Model X and the Model E.
"Alcoa has unveiled a new manufacturing and materials technology for making aluminum sheet, aimed especially at automotive, industrial, and packaging applications. If all its claims are true, this is a major breakthrough, and may convince more automotive engineers to use aluminum, instead of competing materials."
Design News - Engineering Materials - Alcoa's Micromill Process, Alloy Could Change Car Manufacturing
"Alcoa has unveiled a new manufacturing and materials technology for making aluminum sheet, aimed especially at automotive, industrial, and packaging applications. If all its claims are true, this is a major breakthrough, and may convince more automotive engineers to use aluminum, instead of competing materials."
Design News - Engineering Materials - Alcoa's Micromill Process, Alloy Could Change Car Manufacturing