So, after a little digging I found the eight special rarities (as shown on the German amazon music):
Holiday road
Dancin' across the USA
Go insane (Extended Remix)
Slow dancing (Extended Version)
Time bomb town
Soul drifter (Radio Remix)
On the wrong side
Twisted
Slow dancing (Extended) can already be streamed...
And...it seems this compilation will be released in Germany mid-June
Tschoe
Tobias