Former Opel CEO Neumann joins board of U.S. self-driving software startup Former Opel CEO Neumann joins board of U.S. self-driving software startup May 24, 2019 dzadmin Comments 0 Comment Former Opel CEO Karl-Thomas Neumann has joined the board of California-based Apex.AI, which is working to make open-source self-driving software reliable enough to be used in commercially available vehicles.