It’s not like the Escalade has simply gone bad, more that it hasn’t been updated (or better, completely revised) while newer products like the QX have sprung up. That relative datedness isn’t unique to Cadillac in this teetering full-size SUV segment, as mainline competitors like the Lexus LX (2007), Mercedes-Benz GL (2006), and Lincoln Navigator (2007) are all growing pretty long in the tooth.