Either one you get will be a great ride.
I do miss the navigation on my 40th, but the color to me was what put the vehicle over the edge for me. After two years of owning the 40th, I am still awe struck whenever I see the color combination of the Quartz body, wheels and then the contrast of the red interior and brake calipers
.
I am very particular about color combinations and how they make me "feel'. The 40th has never disappointed...
Good Luck with your decision!