The Gulfstream II is a true powerhouse of an aircraft. It has upgraded engines, new swept wings and stand-up cabin which gives it transcontinental range capabilities that were unheard of in its predecessor the G I with only one engine powering the plane. The first model boasted swept wings, providing for a better aerodynamic design than before to make flight more efficient and less arduous on both pilot’s body as well as passengers who would be sitting much more comfortably during their journey across America or Europe while travelling through air travel history at supersonic speeds!