http://insider.simbin.com/more-than-a-game-anthony-the-god-of-thunder-monteil/
From my point of view, race cars are not only vehicles modified for the competition, they are wild screaming animals. As a spectator, the sound that the cars produce is probably the most impressive. But as a driver, it looks more like a fight against a beast, with the vibrations and the sound of the engine becoming a part of your own body.
Therefore, providing this scream into the games is essential for a proper immersion.