Ford’s Super Duty pickups received a host of styling and functional improvements in 2005. For 2006, the top-of-the-line Lariat trim receives more standard equipment plus the availability of a new Amarillo appearance package and 20-inch chrome wheels. The King Ranch adds two new paint colors, and a new Chrome Package is available for XLT and Lariat models. Diesels now feature a 50-state emissions package.