I donno about the uninvolved drive.
I have never driven a 760iL, but I find even my 730d to have that "something"
That car is so well insultated, so yea its quite, but take on the twisties and you get that direct feeling on the steering wheel you can only get from a BMW, and I find it hugely responsive and agile for such a big car,
I also find it exceptionally smooth, and confidence inspring, I often find myself doing like 160 where I really shouldnt be, but feel confident in the vehicle, I drive it way faster then I drive the E34.
ANd I have to say that the E65 is a far more involved drive then a W203 C270 Merc with similar power. So for me, the perfect garage would be.
I will own a 760 or a 760iL within the next 5 years....
ANd if I cant have that.....