Applied online, my previous internship was in-line with the credentials. GM contacted me for a 20-30 minute phone interview. It was really easy to talk to the HR lady. Very nice, straight forward questions, nothing crazy. Just introduction type questions. Phone/Video interview was set-up via email a couple days later, if I remember correctly. It was 10 min. of standard introduction questions, then 40 mins of STAR questions, for about an hour with one of the hiring managers. Then the interview was turned over to another hiring manager. Same types of questions, some where identical. 2 hours total. It was concluded that they liked me, but it turned out that they recommended me for a different department (I was happy after speaking with them, but had to start the process over). Another Phone/video interview was set-up a couple weeks later.. but we couldn't get a particular time down. So I suggested that I would go in and do a person-to-person interview since I was at an internship at FCA (close by). I arrived at GM Tech Center, not very nervous just because I had been going to different interviews for the past month. I had my speech and Ideas down in my head for the STAR format. The interview went well, almost identical to phone/video interview, but all the same questions, AND THEN SOME. I believe they actually added on different questions, knowing I had already been through an interview in a different department. I swear there was more questions for the on-site interview than on the telephone. Maybe this department was just more strict/or I became more nervous. I actually ran out of ideas in my head, and had to start thinking up new ones. It was tough, but I was as prepared as a could have been. Hiring manager was awesome, he actually helped me along as I talked through the questions. It's okay to take a minute to think. Just let them know you are thinking (like a game show lol). An offer was delayed due to be not being able to accept it until I was almost ready to start working. Company policy to only have a small time period to accept. I accepted the position after pushing the offer letter off for 2 months. I had other offers but GM had the best pay/benefits/job responsibilities. Although, I didn't get an offer as a NASCAR driver, so this was the next best position. Toughest interview process (probably because I went through 2 interviews for different departments), but very rewarding. Very happy with my decision to come to GM. Goodluck!