Many three-row SUVs are slab-sided behemoths. Not the GLS450.

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The 2017 Mercedes-Benz GLS450 has a bit more sculpting, much of which helps it look like other recent M-B models.

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Of course, there's no getting around just how darned big this thing is.

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It rides like a dream, thanks in part to its Continental all-season tires.

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It will tow up to 7,500 pounds, which is a little less than its body-on-frame competitors can handle.

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However, those ladder-frame competitors also ride like trucks, while this one doesn't.

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The suspension is supremely soft, even after loading the car up with folks.

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It'll achieve 17 mpg in the city and 22 mpg on the highway, which is right in the middle of its segment.

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Competitors include the Infiniti QX80, Audi Q7 and Lincoln Navigator.

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Keep on scrollin' to check out even more pictures of Mercedes-Benz's luxury leviathan.

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