The QX80 is a large, plush, quiet, and well-equipped SUV that is cumbersome to maneuver and ponderous to park. The 400-hp V8 churns out admirable thrust, channeled through a seamless, seven-speed, automatic transmission. Climbing aboard takes dexterity and it's hard to access the small third-row seats with dignity intact. A more serious detriment is emergency handling. When pushed to its limits, the QX80 leans a good deal and the tail can start sliding out disconcertingly. Though it didn't do anything dangerous, it bred very little confidence.