One of 4 available trim levels, the 640I-XDRIVE is available with Airbags, Anti theft alarm, Auto Door Lock, BA (Brake Assist), Central Locking, Cupholders, Foldable Rear Seats with 60:40 Split, Footwell Lights, Automatic Headlight Range Control, Chrome Exhaust Pipes, Chrome Plated Radiator Grille, Daytime Running Lights - LED, Ambient Lighting, Audio Controls on Steering Wheel, Auto Dimming Mirror and Automatic AC. This German Sedan comes with a 3.0-litre 8 Petrol engine that generates 320 horsepower and 450 Nm of torque.On the other hand, the Lexus GS comes with a 2.5-litre For the Oman, the average price of the 6 Series Gran Coupe including all versions is OMR 44,000. Factoring in annual depreciation of 25, we expect the 640i-xdrive to cost OMR 30,750 on the used car market by next year.