Good adviced here..

Cause now I comparing between CBU 2016 new car at 100k discount...

Vs new CKD 2018 car at about 50k more then the above...

unless it's s class or maybach, you can expect cbu or ckd to age like milk.
it's a german afterall.

Yes mostly kampung rempits and banglasia work there.

Same goes to Toyota and Lexus also.
Although Toyota owns Lexus, Toyota cannot campur tangan Lexus too.

Toyota & Lexus is different that they were original the same company just different brand to cater different market. they share alot of tech between each other if not you think Lexus can be Lexus if they built Lexus from scratch?

Same goes for Nissan & Infiniti, Honda & Acura, they are still the same company. unless you say Nissan now owned by Renault but Infiniti is independent.

For Porsche & VW it's very different as VW bought over Porsche and there are terms & conditions included in the purchase same as Geely & Proton. Unless Porsche went bankrupt and has no bargaining power, Porsche will retain their own Trademarks & Patents and won't be shared with VW. There will be some technology transfer but it won't be simple as copy pasta.

Same as Lotus & Proton, Lotus tunes some Proton cars but Proton doesn't really interfere with Lotus nor does Lotus provide full technology transfer to Proton.

Also Audi & Porsche being under VW group doesn't mean the shareholders of VW is the same as Audi & Porsche thus there are restrictions on what these companies can do for each other.

People have learnt the mistake from Compaq and has come up with many terms & conditions during a buy over.