With a range of engine choices and options, the 2009 Dodge Ram line has greater fuel economy, more horsepower and higher torque than previous years. In addition, the aerodynamics of the 2009 Rams have been improved. Engines available in 2009 Dodge Ram 1500 models include the new 390-horsepower 5.7-litre HEMI, flex-fuel 4.7-litre and 3.7-litre gasoline engines. The 2009 Dodge Ram Heavy Duty models (with current 2008 design) are available with either the 5.7-litre HEMI or the 6.7-litre Cummins turbodiesel engine.