I appologize ahead of time if this is the wrong forum channel... I'm not good with much German. I saw a lot of requests across numerous sites for the double capacity to be transferred over to the DLC content and I decided to make it for myself as well otherwise I would have simply been another request. I used the origional double capacity mod and reverse engineered it using CIMextract and my method of creation should make how to continue this mod... fairly self explanatory.
Instructions;
Place the addons folder in the .zip file in your game folder (C:\Program Files (x86)\Steam\SteamApps\common\cities in motion) <might be different if you don't use Steam>
Then once the addons folder is in place... just fire up the game.
(I don't know if this mod conflicts with other mods... it hasn't conflicted with any I use)
P.S. I take no credit as I reverse engineered the original mod to make the DLC version.
1.2: Added Tokyo to the DLC update.