Porsche brand had the lowest number of problems per 100 vehicles with 110, according to the study. US brands Lincoln, Buick and Mercury were in the top 5 but J.D. Power reports consumer perceptions lag far behind those results.

Porsche has topped the list as the most reliable brand available in the United States in a Vehicle Dependability Study by J.D. Power and Associates.

Porsche had a score of 110 PP100 (problems per 100 vehicles), the lowest of any brand sold in the US market. Ford's premium brand Lincoln came in second, GM's Buick third, Lexus at number four and another Ford brand, Mercury, rounded out the top five.

According to J.D. Power, in some cases, consumer perceptions lag far behind the true reliability of certain brands, particularly US marques such as Lincoln and Cadillac. Those brands perform well in dependability tests while consumers still view them as problem-prone.

"It takes considerable time to positively change consumer perceptions of quality and dependability - sometimes a decade or more," said David Sargent, vice president of global vehicle research at J.D. Power and Associates.

Winning out in the most segments was Toyota, which took vehicle category titles with four models - the Highlander, Prius, and the Sequoia and Tundra pick-up trucks. Yes, the Toyota Prius won the best dependability rating in the compact car segment.

The study also shows that overall dependability has improved for all cars, with a 155 PP100 average rating this year compared to 2009's 167 PP100.


Porsche Tops J.D. Power and Associates Dependability Study