The 2009 Ford Mustang has a V6 engine.
Depends on the engine
The 4.6 L , Single Over Head Cam V8 engine in a 2009 Ford Mustang GT is rated at ( 300 horsepower from the factory )
Ford advertises 300 HP at the engine, which translates into about 260 RWHP.
The 1999 Ford mustang was rated at 190 horsepower for the 3.8 liter engine and 260 horsepower for the 4.6 liter engine
The 1986 Ford Mustang 3.8 liter engine was rated at 120-horsepower
The 3.8 liter V6 engine is rated at ( 190 horsepower ) in the 2000 Ford Mustang
the 1995 Ford Mustang GT was rated at 215-horsepower
The 2011 Ford Mustang's engine produces 305 hp @ 6500 rpm.
The 2003 Ford Mustang's engine produces 190 hp @ 5250 rpm.
The 2005 Ford Mustang's engine produces 210 hp @ 5300 rpm.
The 2013 Ford Mustang's engine produces 305 hp @ 6500 rpm.