I too would like to see. I'm thinking of adding one for my TDI. I'm thinking about using the Mann Provent 200 and making it mount to where the G60's vacuum pump normally sits near the coolant bowl. I've also thought about plumbing it into the exhaust and not using the Mann Provent.
Below are some pics of the provent from this tdi thread: http://forums.tdiclub.com/showthread...480#post846480
Here is one I had on my G60 way back in the day: