Have to disagree with your comments. Yes, the Germany big 3 can easily produce additional 50k cars in one quarter. BUT this is for ICE cars that you are talking about. You didn't even consider where the heck the German get the entire EV supplier chain, logistic chain from. Where did they get the battery and electric motor up to that volume??
1. Apparently battery cells are a commodity with massive overcapacity, so that isn't an issue.
Daimler declines to invest in battery cell production
2. They are building a SECOND battery factory which triples their existing supply.
3. I don't believe motors would be a big problem for Daimler engineers given the money they have and other businesses they have and the 2011 joint venture with Bosch. It isn't as if the idea of a motor is particularly new.
4. It is a money issue far more than it is a "rocket science" issue. An EV with a motor, as someone here pointed out, is a lot simpler and an ICE with all the complexities of that entire system. Tesla provided a lot of the patents, I am sure Panasonic and others would be happy to cash Daimler's checks if they wanted to write them.
They have the rest of the supply chain down, as well as the ability to produce cars AND QA them so they aren't going back to the shop after delivery.
Remember, Tesla also had to build a supply chain and IIRC they did with Toyota and Mercedes parts.