A heavily camouflaged prototype of the 2016 BMW 7-Series has been caught on camera by a WCF reader.

A heavily camouflaged prototype of the 2016 BMW 7-Series has been caught on camera by a WCF reader.

BMW is still stubbornly keeping disguise on their 7-Series prototypes even though on New Year's Eve a 730d model was photographed without any camouflage. These latest spy shots were taken by a WCF reader driving on the I20 near Balch Springs in Texas where a standard wheelbase 7-Series (G11) was undergoing some final testing ahead of what will likely be an official debut in September at the Frankfurt Motor Show.

Believed to lose as much as 200 kg (440 lbs), the new 7-Series is likely getting a new entry-level diesel version with a four-cylinder, 2.0-liter developing about 260 HP (191 kW). At the other end of the spectrum, there's going to be an M750i version with a twin-turbo V8 4.4-liter which will be upgraded to deliver in excess of 600 HP (441 kW). Also expect to see the V12 6.6-liter along with a plug-in hybrid setup teaming up a four-cylinder gasoline engine with an electric motor.

BMW will probably decide to reveal the 7-Series online before Frankfurt Motor Show so expect full details and images in the second half of August or even sooner.

Special thanks go to J. Castle for sending us the pics!

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2016 BMW 7-Series spied by WCF reader in Texas