I agree Chris, and there are a view that have been sitting around for quite a while so it is definitely worth a shot. My issue is I live in Bendigo. Not too far from Melb but far enough to be awkward (especially with a couple of young rug rats!! :)) to be able to have a look at a lot of cars and make reasonable offers. Hard to bargain over the phone or email. People get pretty wary of scams these days and and also figure that if you can't get to the car you are just not that interested.
Similar for when I have a car for sale here. I had a really clean Focus a few years ago but just never got any bites as people seem to think Bendigo is too far away, even though it is only 1.5hrs (from centre of melb). Closer than if you were travelling from st kilda to frankston at times!!
I looked up the Dealer for that one you posted. Wapshott motors in Surrey Hills. They have another D5 for sale that was previously listed on carsales but then disappeared.
http://csndealers.carsalesnetwork.com.au/details/2008-volvo-xc90-d5-no-series/OAG-AD-12871916?dealerId=AGC-SELLER-28591
One conern is that they had there traders licence suspended for 6 months in 2012 in a MCT guarantee fund (Consumer affairs)
Anyone have any info on them?