In 1999, Ford separated its heavy duty trucks into a completely different line and called it the Super Duty. For 2008, Ford redesigned the Super Duty and released its most powerful pickup ever; the F-450 Super Duty. Despite its large stature, the Super Duty was designed to be driver friendly offering convenience options usually found on luxury cars. The Super Duty King Ranch provides one of the most luxurious interiors among pickup trucks with unique leather bucket seating for four and wood-trimmed steering wheel and dash. The Ford F-Series Super Duty comes with a five-year/60,000-mile powertrain warranty and a five-year/100,000-mile warranty on the Powerstroke Diesel engine.