I wondered similarly - or, MOO, the image showing the steeper ledge where the car was found made me wonder if she may have been playing around a bit driving into the shallow water on her way around to the road. I feel like as a teenager I would have loved using AWD or "off-roading" and would have taken the opportunity to splash in the very shallow water with my car. Obviously, I don't know how deep the water is up to the ledge, and this is all nonsense if it's deeper than a foot, but if she wasn't thinking clearly and was adventurous could she have just been having fun? But then again, how did no one see/why didn't she get out if that was what happened? Honestly, I think this was all a tragic accident, but trying to think of how or why she would have ended up there, even if it seems as ridiculous as splashing around for a second before heading home. MOO.