15. Mercury Villager / Nissan Quest
The Mercury Villager and Nissan Quest emerged from a unique collaboration between Ford and Nissan, resulting in two almost identical minivans. Built on the same platform with shared engines and interiors, the main differences came down to minor styling cues and badges. This partnership allowed both companies to compete in the growing minivan segment without duplicating development costs, giving families a choice between two familiar yet subtly distinct options. Source