The German leaped up from 10th place, in the J.D. Power vehicle dependability study of more than 52,000 motorists across 36 car brands sold in the US. Porsche boss Michael Macht said the challenge for the company was "not about achieving a high quality standard for the short term, but to assure such quality over a period of many years".
They knocked Buick off the top back to third with Lincoln second. Despite recent safety issue recalls, Toyota came sixth and notched up maximum points in their categories for Highlander (Kluger), Prius and Sequoia and Tundra pick-ups.
Honda, in seventh place overall, took out three categories for the CR-V, Fit and Ridgeline. Lexus, which had been number one for 14 years until last year, continued the slide into fourth, while Jaguar dramatically dropped from second to 22nd.
J.D. Power survey respondents are original owners of three-year-old cars, asked about potential problems across almost 200 areas. Overall, J.D. Power found that vehicle dependability has improved by 7 per cent.
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