The engineering analysis closing report covers 1993-1998 Mercury Villager and Nissan quest minivans.these two minivans share a common body platform and power train.based on the low number of reported incidents and the absence of a demonstrable failure trend, a safety-related defect trend has not been identified at this time and further use of Agency resources is not warranted.the closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.the Agency reserves the right to take further action if warranted by the circumstances. See engineering closing report EA99-015 for details.