The BBJ and BBJ2 are high-performance derivatives of the commercially popular Next-Generation 737-700 and 737-800, respectively. Providing unsurpassed levels of space, comfort and utility, the BBJ cabin offers 807 square feet (75 square meters) of space, nearly three times the interior space of competing models with similar range capability. The BBJ2 offers 25 percent more cabin space and twice as much cargo capacity as the BBJ. In 2002 the 737 manufacturing process converted to a moving line system, replacing the station to station method of assembly pictured here.