In case you haven't yet put yourself on the mailing list to be alerted each time a new one becomes available, Mercedes Benz has just released their eighth Mixed Tape online.
Just surf on over to their website to listen via a very nice Flash player interface. Or, download all 15 tracks in mp3 format to burn onto a disc, import into iTunes, share with a friend, or whatever. These completely free, no-guilt mixed tapes are a rare find. Click.