SpaceX Mechanical Design Engineer interview questions

Got an email that I'd been selected for an interview, went through a short (30 minute) technical interview and then was asked to write up a report of my most challenging project. Got a second phone interview and talked with someone from the team I was interviewing for who asked me questions about my report and went through some design problems /thought exercises. Got an email that they were moving forward with someone who had more experience. A great experience overall and a lot of good feedback. The people involved responded to my questions and concerns very timely. I had another offer on the table and they expedited what was normally a 4-6 week process into 2 weeks.

First had two phone screens: one with a team member and the other with the team manager. The phone screens were behavioral + resume stuff. Really know what you out on your resume because they will dig into it. Was then invited out for an on-site. On site started with a tour of the production floor. Then gave a 30 minute presentation on something bi designed with a 30 minute Q&A session after. Then had several 1:1 and 2:1 interviews with the team members, management, and director. Some of the 1/2:1s we're totally technical, asking me to solve design problems and critique designs, others were a mix of technical and behavioral.