The Study

Independent market research firm J.D. Power & Associates released the findings of its 2007 Vehicle Dependability Study, which measures problems experienced by 53,000 original owners of 2004 model year vehicles. The top five brands in the study were, in order: Buick, Lexus, Cadillac, Mercury and Honda. Hummer posted the most improvement, though still ranks below the industry average. The least dependable brands in the study were, in order: Land Rover, Suzuki, Isuzu, Saab, and Volkswagen.

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