Chrysler and Jeep are the most improved brands in J.D. Power’s 2016 U.S. Initial Quality StudySM (IQS) with both brands improving their initial quality scores by 20 percent from last year’s study. FCA US minivans also performed well in the study. Chrysler Town & Country ranks highest among Minivans in initial quality with Dodge Grand Caravan taking second place in the segment. IQS is based on responses from more than 80,000 purchasers and lessees of new 2016 model-year vehicles surveyed after 90 days of ownership. The study asks customers to identify issues with their vehicles’ design, as well as defects. The IQS study, now in its 30th year, is based on a 233-question survey conducted between February and May 2016.