Rather than an ear-piercing shriek, the 3.5-liter EcoBoost in the GT sounds like a grumbling monster. The previous development video from Ford Performance hints at this angry exhaust note, but it's on full display here. Thankfully race fans around the world get to hear this wonderful noise when the GT hits the track next year. Two of them are competing in the United SportsCar Championship, and two more are in the FIA World Endurance Championship. All of the members of this quartet are also lining up at Le Mans, too. Hearing them making this wonderful growl together should be a major highlight of motorsports in 2016.