J.D. Power and Associates finds in its 2013 U.S. Vehicle Dependability Study (VDS) that the dependability of models that were new or substantially redesigned for the 2010 model year were of better reliability than models that were unchanged from the 2009 model year—also referred to as carryover models. The metric for reliability in the study is number of problems experienced per 100 vehicles (PP100), with a lower score reflecting higher quality. For new and substantially redesigned MY2010 models, the score was 116 PP100, compared with 133 PP100 for models that were unchanged from MY2009. Power says this is the first year that there are fewer reported problems for all-new or redesigned models than for carryover models since the study was redesigned in 2009. Models that were refreshed in 2010—those with generally minor changes to the interior or exterior—average 111 PP100 in the 2013 VDS. The study was fielded between October and December 2012 and involved responses from more than 37,000 original owners of MY2010 vehicles after three years of ownership. The 2013 study shows that overall vehicle dependability averages 126 PP100—a 5% improvement from the 2012 average of 132 PP100; it is the lowest problem count since the inception of the study in 1989. The best-scoring brand was Lexus and the best-scoring model was the Lexus RX. More information on the study is available here.