Bombardier Challenger 850
The Bombardier Challenger 800, originally known as the Challenger SE, is the largest super-midsize business jet that was built by Bombardier Aerospace. It is based on Bombardier's 50-seat Bombardier CRJ200 LR. The Challenger 850 is the updated version, produced from 2006 to 2012.
Source: Wikipedia — Bombardier Challenger 850 (CC BY-SA 4.0)