I recently drove a Ford Edge awd, automatic. Coasting in N gave exactly the same rpms as coasting in D. Go figure.
I've noticed that Fords are pretty "dumb" when cruising. If I start mine cold, it will glide at the cold idle speed even after it's been warmed up unless I come to a complete stop and let the computer get it back down to 850rpm. But even having done that, it glides at around 1000rpm instead of the 850 idle speed...
My Mom's old Ford Escape with the Duratec six did the same thing as well.
'67 Mustang - out of commission after an accident
'00 Echo - DD
'11 Kia Rio - Wife's DD
'09 Harley Nightster - 48mpg and 1/4 miles in the 12's