Prototypes for the 2016 BMW 7-Series have been caught by our spies during their latest round of testing. The test drivers however, appear less than pleased to see the photographers as they stopped to create a confrontation. Our German is a little rusty so the content of the conversation evades us, but the tone and body language certainly gives away their true feelings.

The model in question is the next generation of BMW's flagship model and rides on the brand new 35up platform. Reports have indicated it will shed up to 200kg of weight compared to its predecessor using lightweight materials including aluminum, magnesium and carbon fiber-reinforced plastic.

Exterior styling will draw its inspiration from the Vision Future Luxury concept but updates will by evolutionary rather than revolutionary.

Available engine units will include an inline-six 3.0 -liter and a new 4.0-liter V8 unit with the range topped off by a V8 4.4-liter twin-turbo tuned to pump more than 600 bhp (447 kW). A small 4-cylinder, 2.0-liter turbodiesel will also be introduced to the 7-series range for the first time.

The next generation BMW 7-series will be unveiled at the 2015 Frankfurt Motor Show before beginning sales early in 2016.

Gallery: 2016 BMW 7-Series spied, driver not so pleased [video]

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