What is the relationship between Porsche 911 GT3 and Porsche in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

(REUTERS/Michaela Rehle) A worker inspects the new Porsche 911 GT3 RS sports car in the final check area at the Porsche factory in Stuttgart-Zuffenhausen March 10, 2015.

Answer: brand