The China-only model is 140mm longer than the regular car, extending rear leg room by 157mm and knee room by 116mm.
The car has been designed with Chinese chauffeur-driven buyers in mind, so comes with the latest InControl Touch Pro infotainment system, two 8in screens and digital wireless headphones.
The screens can also display media streamed via the car’s wi-fi hotspot, or from devices connected through the HDMI/MHL ports. The system works with an 825W Meridian Surround Sound System that uses 17 speakers.
Rear passengers also have folding rear tables, heated and cooled seats with a massage function, four-way lumber adjustment and window blinds, and the whole cabin features a new air-cleaning ionisation system.