Coupe flagship continues gradual strip tease

The upcoming BMW 8 Series has been spotted once again, ahead of its anticipated reveal at the 24 Hours of Le Mans in June.

Compared to previous prototypes, these latest images show two vehicles with a camouflage-free glasshouse, which gives us a better look at the overall shape of the window- and rooflines.

The first vehicle (top) appears to be wearing an M Sport package – given away by the larger wheels, blue brake calipers and subtle bodykit – while the other (below) features a more aggressive look hinting at an M Performance model, likely the M850i xDrive detailed by the company a fortnight ago.

Set to be the performance hero of the core 8 Series range, the M850i xDrive will be powered by a 4.4-litre twin-turbo V8 making 390kW of power and 750Nm of torque, which the latter available from just 1800rpm.

That grunt is channeled to the tarmac via a performance-tuned eight-speed automatic transmission and rear-biased xDrive all-wheel drive system. BMW hasn't quoted performance figures yet, though we reckon 0-100km/h will take around 4.0 seconds.

Other features of the M Performance 8 Series will include an active rear differential lock, adaptive M suspension with roll stabilisation, and an Integral Active Steering system.

The BMW 8 Series is said to be scheduled for an official reveal at the 24 Hours of Le Mans at Circuit de la Sarthe, France, which will take place on June 16 and 17.

Stay tuned to CarAdvice for our coverage.