Like the Odyssey and Toyota Sienna with which it competes, the Quest has taut suspension tuning. The ride is firm but not harsh; it's certainly better than the bouncy responses the Dodge Grand Caravan's suspension exhibits on bumpy roads. It's worth mentioning that during most of my test drives I was alone in the Quest; adding a half or full load of passengers (which is the reason people buy minivans) might counteract some of the firmness in the Quest's suspension. The Quest feels stable and planted on the highway...