At 20,986 miles, our long-term 2017 Chrysler Pacifica Limited still has the scent of a winner. To be honest, it has an odor. The new-car smell has gone, replaced by much-loved used-car musk. You know what we mean: the Chick Fil-A fry found under a seat, the carpet deodorizer left behind by a rush job at the car wash. We've had our shiny-blue...