For 2005, the F-250 is offered in the Base XL model in addition to the Lariat Highline Edition and the Lariat Outlaw Package. The F-250 is a four-door up-to-six passenger heavy-duty pickup truck that features a 5.4-liter Triton V8 base engine 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.