The latest shots show three different prototypes, each testing a different a powertrain destined for the car.
The shots also show that BMW is leaving the styling of its flagship sedan mostly unchanged.
That’s because the bulk of the changes will be taking place under the skin, including some revisions to the engine lineup. However, there will be some subtle changes to the exterior as can be seen by the new bumpers, which resemble the units on the new 2012 3-Series.
In addition to this, the overall shape of the headlights will remain the same but new LED accents will feature. The indicator lamps will consist of a new row of LEDs situated at the top of the headlight unit. BMW should also offer an all-LED headlight option, just as it doing with the new 6-Series range.
Other changes should include new wheel designs, those restyled bumpers, plus a revised rear spoiler.
2013 BMW 7-Series facelift spy shots
All engines should be matched to the latest variation of ZF’s eight-speed automatic transmission, and we could even see a number of new EfficientDynamics features appear such as brake energy recovery, engine stop-start and more electronically powered ancillaries.
Look out for a debut of the facelifted 2013 BMW 7-Series at the 2012 Beijing Auto Show this month, an appearance that will once again highlight the growing importance of the Chinese market to automakers all around the world.