Porsche and Audi are fierce rivals, especially on the motorsports scene.
Due to the dieselgate scandal, Audi chose to withdraw from the FIA World Endurance Championship by the end of 2016. The company will put more attention to Formula E instead.
Audi has been participating in the FIA World Endurance Championship for the past 18 years and they even welcomed Porsche back to WEC in the video below.
After news that Audi is quitting WEC, Porsche released this video.