The all-new GX SUV is Lexus's most off-road model. It's distinguished by a premium feel, albeit wrapped in a more rugged old-school body-on-frame design, and a solid Lexus reliability record. The GX is about 5 inches longer, 4 inches wider, and gains a couple of inches in height and wheelbase. But the added size and capability come with a downside—incremental fuel economy gains.
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