Tesla has made a major breakthrough in car manufacturing technology.

Die casting is very difficult, especially for larger and more complex die casting.

Once successful, Tesla can cast the entire chassis as a single entity instead of the current multiple component assembly.

In March of this year, Musk proposed a new "unboxed" production process. This process can improve the speed of car manufacturing by starting with a single casting, only painting the parts that require painting, and completing the assembly of other components in one go. Analysis suggests that Tesla's breakthrough in car manufacturing is similar to Apple's adoption of integrated technology to produce laptop casings.