I applied in-person. The process took 1 day. I interviewed at Tesla (Fremont, CA) in Nov 2014
Interview
They had hundreds to thousands of people sign up for the open job fair. If you made it past that part you were put into a room with around 25 people for a basic skills review. If you passed that part of the test, you would get an interviewed by 3 people who were really checking your personality. If you managed to make it past the board, you would be individually interviewed to answer any question you may have and to also delve into your past work experiences.
Interview questions [1]
Question 1
They put about 25 people in a room and asked interviewees to properly measure cm on a ruler while leaving space for nuts and washers.
I applied through a recruiter. The process took 2 days. I interviewed at Tesla (Fremont, CA) in Aug 2016
Interview
They talked to me about the job. What I will be doing. I had a brief interview with Human Resource. Brief interview with the manager. Watched a safety movie and had a quiz after. Took picture for my badge. I also had a panel interview.
I applied online. I interviewed at Tesla (Fremont, CA) in Jun 2015
Interview
Multiple interviews with various section heads. Not much to prepare for. If you have worked in production before say that. Any manual labor job will get some attention, so emphasis that.