Spotted by our colleagues at Automedia-online, the car is said to be a lookalike for the extremely quick BMW M1, due out in Europe in about 18 months.
No details are available yet, but our feeling is that this will also be the face of the BMW 135i due in South Africa next year.
The 135i is expected to have an upgraded larger capacity version of the new lightweight and compact six-cylinder fitted in the 630i.
The 630i engine has 2 979 cc capacity and produces 192 kW at 6 600 r/min with 300 Nm of torque between 2 500 r/min and 4 000 r/min, so we can expect the 135in to produce in the order of 200 kW.
Which should be more than enough to give it a 0-100 km/h acceleration blast in around 6 seconds, and on to an electronically-limited top speed of 250 km/h.
The suspension is uprated, and so are the wheels and tyres, with 17 inch alloys standard. There's new chrome detailing on the bodywork, while the interior gets new sports seats.
At the same time the car's low mass means fuel economy is expected to be excellent, with average consumption of around 9 litres/100 km.