The US market research institute J.D. Power and Associates has found the Porsche 911 model line to be the most reliable sports vehicle. This conclusion was reached after a VDS (Vehicle Dependability Study 2011) which analysed vehicles registered between September 2007 and February 2008.
More than 43,700 American car owners were involved in the poll. They voted Porsche the best German car manufacturer. The company was also praised for their quality standards as regards production.