Final Assembly is one of the most difficult phases of automobile production with lots of detail. Tesla claims that the Model 3 consists of more than 10,000 items, many of which are installed during final Assembly.
To the consumer understand the process, the company has released a brief video showing the build Model 3 at the factory in Fremont from beginning to end:
View this post in Instagram
How Model 3 gets made. Order at Tesla.com