The GMC Terrain is a Football. by Evan Williams January 22, 2018 Share Comments GMC wants you to know that the Terrain is just like a Wilson football. That’s because they have two things in common. The first is that they’re involved with the NFL. GMC sponsors ESPN’s Monday Night Red Carpet Kickoff and Wilson gives its balls to the league. The second is computational fluid dynamics. Terrain engineers spent 300 hours in the wind tunnel tuning the shape and surfaces of the Terrain. That’s on top of thousands more hours spent using CAD and computational fluid dynamics tools to get the shape tunnel-ready. You expect that kind of attention to detail in a new crossover. The payoff is huge for buyers, in this case, up to 3 mpg more according to GMC. Where you don’t expect it is in a football. “Many look at our NFL football and see it as a simple object,” said Daniel Hare, aerodynamics research engineer for Wilson Sporting Goods. “However, the amount of engineering, particularly in the area of aerodynamics, that has gone into the ball is pretty extraordinary.” The shape looks like it has for decades, but looks can deceive. The shape has changed to reflect the way the game has changed to more passing. Velocity, direction, and spin rate are critical for passing. Wilson engineers even look at the pebble of the leather and height of the laces to improve how the ball moves through the air. It’s more attention to detail than you’d expect from a ball. Wilson’s released a cool clip to show you their CFD football simulation.