Someone rear-ended me and I got a horrible whiplash and the rear was bent badly at 30 mph. Turns out that the rear bumper is made of PLASTIC, not a steel bumper like the Toyota Sienna. Also, the headrests are ergonomically wrong because they are too far back so it does NOT protect you from a whiplash. The Nissan Quest also rides too low to the ground so it tends to scrape things and the long wheelbase got me scraping the pavement which took out a baseball size hole in my the van's body. The wheelbase is too long so turning radius is huge so you can't make a U-turn and parking is difficult because it always require backing up and forth.
Lower priced than a Toyota Sienna but you get what you pay for.