I applied online. The process took 2 weeks. I interviewed at ZF Group (Northville, MI) in Nov 2013
Interview
I had 2 interviews, each with a different manager. No HR representatives were at the interview - it was 1-on-1. The managers generally asked pretty detailed technical questions to gauge the suitability of the interviewee.
Interview questions [1]
Question 1
General conceptual physics of suspension systems. Had me draw a strut, as well as bending moment diagrams and other things. Also had to illustrate the concepts of how a shock absorber works, with drawn pictures.