Refer to the input text as context and select the correct relationship between 'Porsche 911' and 'Porsche' from the available options.
Options: brand, manufacturer, publisher, distribution format

Volkswagen-owned Porsche is building a new engine plant and body shop at its core factory in Zuffenhausen, in southern Germany, which will take over production of the Cayman series from VW in 2016, adding to assembly of Porsche 911 and Boxster models.
manufacturer