"Zetsche joined Daimler-Benz in 1976, working in the research department. In 1981, he became Assistant Development Manager at the Vehicles business unit. He became a member of DaimlerChrysler's Board of Management in 1998 and served as the President/CEO of Chrysler Group from mid-2000 to 31 December 2005, where he was credited with a turnaround of DCX's American operations. Since 1 January 2006 he succeeded Jürgen Schrempp as Chairman of DaimlerChrysler (now Daimler AG), being succeeded in the position of Chrysler Group CEO by Thomas W. LaSorda."

and

"Mr. Krüger joined BMW in April 1992 and served as Director of its Production Strategy, Control and Planning Division. He managed BMW Group's engine plant at Hams Hall in the UK and served a number of positions within the Human Resources division. He served as the Chairman and Director of Rolls-Royce Motor Cars Ltd. from May 1, 2012 to March 31, 2013. Mr. Krüger serves as a Director of BMW Manufacturing Co. LLC."

Yep, quite a fair bet that any of those two know far more about auto-making than Musk ever will.