Road trip done....
+/- 1600 miles (1500 of it in two days of highway driving) and the problem(s) persist. Stilll grinds/rattles when turning and accelerating (or when accelerating out of a turn - but it does it in a couple of scenarios, all at lower speeds coming out of a stop), and there is still the rattling noise coming from somewhere at highway speeds (although with the amount I spent on the highway, now I can't tell if it is coming from underneath or from the front toward the engine).
I am unconvinced that any of the noises are "normal" as I was told by the dealer service center last week. I am now due for 5000 mile service, and I I am going to make the tech drive with me when I drop it off.