Tesla Project Engineer interview questions

1st -HR Screening (easy) 2nd- Voice interview with Engineering Staff , this was with a project engineer who had been with the company for several months. This was an honest conversation about their role and expectations. 3rd- 24hr Take Home Test (challenging). I guess I passed this portion because I moved onto the next round. There was not any feedback about the test results. 4th- Presentation / Panel Interview - This was easy, but I probably chose a poor topic to present on. I think the object here is to pick a topic that represents Tesla technology.