Appears to be a 2016 TRD PRO Tundra in the new (for 2016) quicksand color. Not sure how I like it, in fact, kinda don't. Looks like a sunburnt turd if I'm honest. Can't really see it looking much better on the 4Runner.
I think with a lift, bigger aggressive tires, and maybe some black HD bumpers it will look ok. Honestly, I'm not a big fan of it either although, I think it looks best on the new taco. I really wish they would've come out with a color closer to the Terrain color on the Ford Raptor or made the Cement color from the FJ available.
I LOVE that color, and if it had been out when I was buying I would bought that sucker and modded away with no concern about the extra money I paid just for the color.
When I was told by a couple of dealers that it would not be possible to get an Inferno TRD Pro (my first color choice), I really thought about ordering Quicksand. I am really glad that I did not. I imagined this color to be more of a beige/sand color similar to some Jeep JKs, a color I find very subdued and attractive. I would have been royally disappointed. White is not usually my choice but it is growing on me.
Color is such a subjective thing and a matter of personal preference - so I am sure many would love it and this would be their ideal color.
In stock form, I'm not too taken by it. But I've seen some nice FJs with that colour look pretty cool when built up. I imagine it gets a nice para-military look to it if you build it up nicely. That being said, I prefer darker colours myself.