In J.D. Power's annual U.S. Customer Service Index study, dealer service departments averaged 787 points on a 1,000-point scale, up 19 points from a year ago. Nondealer facilities averaged 749 points.
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Mass market brands scored much lower than their luxury counterparts, but BMW's Mini took the top spot in the segment for the second straight year, earning 809 points.
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The study is based on responses from more than 84,000 owners and lessees of 2007 to 2011 model vehicles surveyed between October and December 2011.
