The Gulfstream GIV-SP, large cabin Business Jet, gross takeoff weight is 1,400 pounds increase over the GIV. Like the GIV it employs a Goo­dyear Aerospace brake-by-wire system and a Dowty fail-passive steer-by-wire system, making pilot maneuverability easier.

Up to 19 passengers and amenities include a large galley and full-sized lavatory. The stretched fuselage provides for six-cabin windows per side and the restructured wing is 870 lbs. lighter while providing capacity for nearly 1,000 gallons more fuel.