Well i had chance to look at my oil leak today when i took it to a garage to have the tracking/suspension checked after my 4x4 incident! (see general chat)
It looks like its leaking at the back of the sump gasket

and not the rear crank seal which is good news as i didn't fancy removing the autobox.
Its a 320, how easy is it to access the sump bolts? does the exhaust get in the way?