If you would like to be called for an interview, an internal referance whether engineer or senior mang increases your chance. Firstly HR gets in contact with you and call for 1:1 interview. The questions are pretty strait forward, not so challeging. They would like to see your previous experieces(businees or university) match with position requirements. Than they move you to regarding manager. This process is mostly depends on manager or supervisor. But I would recommend, key thing to show that you are born to work in automotive industry, show your ambitions.