What is the point you trying to make? Yes they are buying the smart engineers and somehow a lot of German car companies didn't buy them first. Pretty much the problem as described above.

The point is: the German factory automation business already exists and is huge. Germany already sells this world-wide. Tesla just bought a tiny share into it.

Industry 4.0 - Germany's 4th industrial revolution https://www.youtube.com/watch?v=Y990kaGbJD0

Industry 4.0 in the Volkswagen Group https://www.youtube.com/watch?v=JTl8w6yAjds

"Industrie 4.0" - Bosch plant in Blaichach, Germany https://www.youtube.com/watch?v=GKhSTjraHlU

CAR FACTORY: Mercedes-Benz Industrie 4.0 https://www.youtube.com/watch?v=fdXRTKy_TrM

German car companies and their suppliers (Continental, Bosch, ...) have already lots of smart engineers in this domain. Their current factories are among the highest automated in the world. Volkswagen invested $15.3 billion in R&D last year, Daimler $7.6 billion, BMW $5.5 billion. Number one, three and seven in the automotive world.

Tesla was spending $0.7 billion for R&D in 2015.