2008 Mercury Sable Premier 4dr Sedan (3.5L 6cyl 6A)
The car rides great, is quiet as anything and the comfort is wonderful. There is plenty of room for relatives, who my wife and I drive around fairly often. While the fuel economy may not be great to some, it is much better than my previous two vehicles, an Explorer and a Grand Voyager, and a great deal better than the most comfortable new car I ever bought, a 1972 Buick Electra 225.
The height of the drivers seat. As a 60 something person with some back problems, it is great to just slide in and out without too much bending at the waist. I love the new color, Dark Ink Blue, which seems to change shades according to the angle of the sun or lack of sun.
A little more range in the power seat positions would be a bit more helpful but it's not a deal breaker.