For 2005, the F-350 SRW is now available with the Power Group option, in addition to the Lariat Highline Edition and the Lariat Outlaw Package. This is a four-door up-to-six passenger heavy-duty pickup truck that features both super-cab and crew-cab configurations, with a choice of XL, XLT or Lariat trim levels. The base engine is the 5.4-liter Triton V8 that produces 300 horsepower. You can upgrade to the 6.0-liter V8 that generates 325 horsepower. All models have a five-speed automatic transmission.