The Boeing 737-800 is a stretched version of the 737-700. It replaced the 737-400. The Boeing 737-800 competes primarily with the Airbus A320. The 737-800 seats 162 passengers in a two-class layout or 189 passengers in a one-class layout. The 737−800 was launched on September 5, 1994.[ Launch customer Hapag-Lloyd Flug (now TUI fly Deutschland) received the first one in April 1998.
Here is an 3D model of this aircraft which has only like 40k tris in Hainan livery