Thanks Freddy and mr. I am still chewing on the idea. I am very concerned about my reverse lights and losing light throw from them. No street lights where I live and it gets pretty dark so I really depend on them. I do like the daytime look of the darker but have been considering the very ideas you both mention.
I am leaning towards the "gunsmoke" color of the lamin-x. If I go this route, lighter in color than I'd like, I could probably get away without cutting out the reverse lights strips. If I go darker, I'd want to cut out the strips and wonder if the contrast of the dark with the cut-out might be too stark. I'm a bit torn because I really think the red lenses are too bright against the AW but then again I only see them when I walk behind the vehicle! Haven't yet looked into 3M's; perhaps this might allow a middle dark over the red and a lighter smoke over the reverse. But, this is likely to double or triple the cost.
As of now, if I go lamin-x, I am considering the lighter gunsmoke color for the tails (scroll the page a bit to see the colors on a lens)
BMW X5 (2007, 2008, 2009, 2010) Tail Light Covers and the light "tint" color for the eyes
BMW X5 (2007, 2008, 2009, 2010) Headlight Covers
Wrestling with decision cause I had told myself I'm done; even tho my mods are comparatively modest, I am still putting lots of $s into a leased vehicle.