Here's why:
* Weight: The F-150 is significantly heavier than the Mustang GT. This extra weight hinders acceleration.
* Aerodynamics: The Mustang GT, being a sports car, has far better aerodynamics than a truck. This is crucial at higher speeds.
* Power-to-weight ratio: While the EcoBoost engine is powerful, the Mustang GT's power-to-weight ratio is considerably better, meaning it can accelerate faster. The 2002 Mustang GT had a 260hp 4.6L V8. While the 2011 F-150 EcoBoost's horsepower varied depending on the configuration (around 310-365 hp), the truck's significantly higher weight negates this horsepower advantage in a race.
While the F-150 EcoBoost might have more horsepower in some configurations, the Mustang GT's lower weight and better aerodynamics will likely give it a significant advantage in a race. The F-150 might have a slight advantage in a very short sprint from a dead stop due to possibly slightly better low-end torque, but the Mustang would pull away as speed increases.