General Motors' GMC truck brand, meanwhile, was named the most satisfying mainstream brand. Detroit automakers took 12 of 23 individual product categories, though imports still led in such key segments as midsize passenger cars, premium luxury models and minivans.
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That list includes the newly redesigned 2014 Mercedes-Benz S-Class, which was the highest-ranked of any individual model, according to AutoPacific.
The Vehicle Satisfaction Awards are based on 50 separate criteria, including design, interior comfort, performance and fuel economy.
"Vehicles that score highest in the Vehicle Satisfaction Awards are delivering value and satisfaction across a wide range of attributes," said George Peterson, president of AutoPacific.
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The results of the AutoPacific study often stand in contrast to traditional, quality-based studies, such as the J.D. Power Initial Quality Study. Peterson said that with quality on the rise for all brands, it has become less of a brand differentiator. That means other factors, such as design or comfort, can have a more significant impact on long-term satisfaction, as well as on brand loyalty.