I applied online. The process took 8 months. I interviewed at Mercedes-Benz International (Milton Keynes, England) in May 2015
Interview
Online Application, no tests because the site was under development, telephone interview, assessment centre.
The process is really long winded and they will keep you waiting with absolutely 0 communication. I had actually forgotten that I had applied... thats how long it took!
There were 3 stages,
1. psychometric tests which consisted of maths, english and verbal reasoning. They were quite intense and tight for timing so practice tests were useful
2. Video interview: a set of pre-recorded questions based on yourrself, reasons for applying and competencies
3. Assessment centre: 4 hr assessment centre consisting of group activity, individual interview and case study task