Dedicated LPG Falcon

I am thinking of changing cars soon, I need a decent sized station wagon as I move a lot of stuff about. I'm contemplating getting an dedicated LPG 2006/2007 Falcon SW from the SA government auctions. I've heard the LPG system used by Ford is primitive and the auto in this model is 4 sp rather than 5sp. Has anyone had any experience with this car? I would appreciate some feedback. By the way cars to me are like washing machines and fridges, not an extension of my John Thomas
, what I'm looking for is space, reliability and safety.
