All-new Ford Mustang Dark Horse is the first new Mustang performance series in 21 years, featuring a sinister yet premium exterior and interior styling hinting at the best performance ever from its new 5.0-liter V8, projecting 500 horsepower. Mustang Dark Horse with available Handling Package is the most track-capable 5.0-liter V8 street-legal Mustang ever, thanks to improved aerodynamics, upgraded hardware, new software and tuning with an available six-speed manual transmission. The arrival of Mustang Dark Horse heralds a new chapter in the storied Mustang motorsports history with the all-new Mustang Dark Horse S and Dark Horse R track-only models that are part of six new racing Mustangs coming soon.