N12U was indeed a G-IV. The 7X has a lot more range, M85 cruise, more neat features for pax as far as connect ability goes. Big window for pax. Excellent visibility for the pilots up front. Far better than the G-IV. The 7X is very quiet in the cabin. The 7X is extremely quiet in the cockpit compared to the G-IV. Pilots can talk at regular levels- no windshield wipers making noise either.

The best part of the plane is the 3 Pratt and Whitney's back there. Sorry- shameless plug for UTC.