Rojie,
You are truly a wealth of useful information and thank you for your insight. And upon learning that it's a limousine, I'm not even upset!
Now that I re-read my post I realize that I wasn't as clear as I could have been.
I am not interested in true off-roading but, instead, I'm interested in driving it on "good dirt tracks" like you describe. The outcome I'm looking for is that, because I live around the mountains and enjoy camping, I would prefer that this is able to go off road without breaking the trim.
I see this crazy Russian modification posted above and, while it's certainly pretty kick-ass, I wouldn't have anywhere to park that thing. There is a video I found on Youtube that reflects something a little more modest (attached), and better aligned with what I have in mind (an AH20 I believe, but nonetheless gives an idea of what I'm aiming for).