According to Newsmax and Boston's Howie Carr it is a G-V that Teresas calls the Flying Squirrel (do you suppose it this is because it carries around a lot of nuts).
A Gulfstream G-V tops up with about 6100 gal. of fuel compared with my Suburban's 31 gal. That is about 200 fill-ups for the so called king of all SUV's, which works out to around 8 years of driving for my family.