The 2026 Ford Mustang EcoBoost matches the 315-horsepower output of a 2010 V8 GT, yet several four-cylinder competitors and hybrids on the modern market still outgun its displacement-defying performance.
When Ford redesigned the Mustang for the 2015 model year, the car introduced an independent rear suspension and the turbocharged 2.3-liter EcoBoost engine. As older V6 options left the lineup, that four-cylinder became the vehicle’s volume and base engine. Today, the 2026 Ford Mustang EcoBoost produces 315 horsepower and 350 pound-feet of torque.
That output matches historical V8 numbers. A handful of modern four-cylinder vehicles and electrified powertrains edge past it on the spec sheet.
Rivals Outpacing the Base Mustang
Honda builds a 2.0-liter turbocharged four-cylinder powering the Civic Type R that ties the Mustang EcoBoost with 315 horsepower. Its upmarket sibling, the Acura Integra Type S, uses the same engine and platform but features a more aggressive exhaust system to squeeze out 320 horsepower.
General Motors fields a 2.7-liter turbocharged four-cylinder known as the L3B. It generates 310 horsepower in Chevrolet and GMC pickup trucks.
The same motor gets tuned to 325 horsepower in the Cadillac CT4-V sport sedan.
Meanwhile, Porsche extracts 350 horsepower from the 2.5-liter flat-four engine inside the Porsche 718 Cayman S and Boxster S. That motor drove a Cayman S from zero to 60 miles per hour in 3.6 seconds during testing in 2017.
Toyota takes a different route with the Toyota RAV4 Plug-in-Hybrid, combining a 2.5-liter four-cylinder combustion engine with electric motors to generate a total of 324 horsepower.
Ford and RTR Engineer Collaborative Mustang Handling Upgrades
For buyers focused strictly on the Ford platform, the collaborative 2026 Ford Mustang RTR engineered by Ford and Vaughn Gittin Jr.’s RTR outfit brings distinct personality and handling components to the base engine.
The powertrain maintains its 315-horsepower rating. It routes power through a mandatory 10-speed automatic transmission and a Torsen limited-slip differential.
The car incorporates an anti-lag system derived from Ford’s GT Le Mans car. The system keeps the throttle open after the driver lets off the gas and uses the exhaust gas recirculation system to direct air straight to the turbo.
The RTR equipment package costs $8,020 on top of a base EcoBoost, while MagneRide dampers add another $1,750. The base price for the tested vehicle sits at $43,705, with the final price as tested reaching $47,280.
The chassis features a rear subframe alongside front and rear anti-roll bars borrowed from the Dark Horse, alongside a drift brake and specific stability-control tuning.
Earlier coverage: Several Four-Cylinder Cars Surpass Ford Mustang EcoBoost in Horsepower