This mysterious black saloon has been spotted doing hot laps of the Nürburgring, leaving onlookers wondering if it is a test bed for the recently-confirmed BMW CS Concept.
Underneath what looks like heavily modified 7-Series bodywork there is a much slinkier shape that has echoes of the much loved silver concept.
However it is equally likely it is the next generation 7-Series itself, which is said to share its platform with the CS Concept.
The CS is rumoured to be powered by a 6.0 litre V12 based on the current M5’s V10.
The black car features similar quad tail-pipes as the CS.
Other features that are the same are the red lights, covered largely in black plastic, and a raised boot spoiler.
Picture credit: David Dwyer at Northern-Loop Productions.