This IAI-built G150 is the Gulfstream demonstrator. It's seen here departing from static display at the Australian International Airshow. It wasn't quite a year old, having been registered on 7 May 2008. The G150 is a development of the IAI Astra, itself a development from the Westwind and, before that, the Rockwell Jet Commanderr.
This photo was added on 3 March 2018, and has since been viewed 35 times.