As a highly capable off-roader with a nearly six-figure starting price, the Lexus LX 600 has long courted an unclear demographic. Who, exactly, is bashing rocks in a leather-lined full-size SUV?

A 1996 model, the LX 450 has gone through three more permutations and a couple of numeric upgrades in the interim, the fourth-generation LX 600 ... and Lexus’s claim the LX sets the bar for ...