After posting my previous two comments, I started to design a real logo in the meaning of a corporate identity, like it has been done on the Conitec website and the box art of my A6 version. Here is what I have done:

Red logo on black ground


White version, everything all simplistic and bright:


This is a design for a dark red ground as it is the current design of A6:


A complete black and white version without the line:


Basing on the very first picture I liked to design icons in that style for the different applications GS contains. All GS versions didnt matched the engine or had'nt a superior design, so I did it for the apps as well:



I hope you like it!