The 2014 Lexus GX 460 remains as one of the few truck-based premium SUVs in today's U.S. market. It's a niche product that can be used for family-hauling or rock-crawling, though its a muddled message at best that conveys the GX's ownership benefits. Slotted right below the full-size Lexus LX 570, the GX is built on the same platform...