What are we talking about? Germany investing in Japan or German investing into Pakistan? Pakistan should get whatever it can, to access advance technology in ALL sectors. In this case, Pakistan will have thousands of jobs given to her people too. It doesn't matter what "parts" come from Germany or China. You should worry more about what Pakistan gets out of it. Not what parts come from Germany.
Do you have experience in this industry or manufacturing industry overall? Just so you know, there is not even ONE machine on this planet that's developed by ONE Vendor. So yes, there will be parts in German designs which would come from Germany, China, Japan, etc. But what difference does it make? It how the manufacturing industry works.
Pakistan would be getting a LOT more modern cars then what they have right now. This will put a check to the Japanese so they'll be forced to start producing nicer car for the money and much higher quality cars, than the crap they sell to Pakistan right now.
Plus, one German manufacturer comes in and has a positive experience, no one would stop the BMW' and Mercedes of the world to come in and do the same. You guys are VERY short sighted. You don't look at the bigger picture and just respond to every small and big thing in such a negative manner like you are the top economy and you can dictate everything. That's not the case and shouldn't be. Pissing off the investors, who would employ thousands of Pakistanis isn't in Pakistan's strategic interests!!
And I frankly don't think you have a grasp on the economy or manufacturing, or even general business to be frank with you. I'd ask you to ask questions to people who might know, so you can expand your own knowledge. Don't post stuff that makes you look bad as I can clearly see you don't have the background necessary for this discussion. So why not just read up on people who would discuss it with knowledge to expand your own knowledge?