Cheers mate, that pic makes it look better than it actually is. As for lowering blocks, they wont be any good for the xf because its got a coil rear, if it was an xd or a ute/ wagon you'd be alright because they have leaf rears.
EDIT: Didn't see your reply before madaz. Yeah wouldn't go on my car need to have something really dumped and wankey for it to suit.