Let's follow your thought a little further ... If the car was a cab, the cab driver would have come forward with info, wouldn't he? As far as I know, no cab driver info exists. If the car was not a cab, it would have been driven by SOMEONE SHE KNEW, wouldn't it? I mean: she didn't hitch-hike, did she? If it was driven by someone she knew, why didn't that person come forward with information - unless he/she drove Chandra away with bad intent? Who could that be?