Got it!
To shut down the new MacBook Pro with TouchBar you have to hold down shift+ctrl+alt and press the power button 🙂
For some reason the Mac shuts down much faster this way compared to when click the Apple logo in the menubar and select Shut Down... I wonder if it can damage the system or my files by doing the "shift+ctrl+alt and press the power button" command?
What do you all think?