We saw the all-new BMW M4 Convertible first time last August.
Here we have the latest on most revealing spy shots, showing the M4 Convertible cold weather testing in snowy Sweden.
The retractable hard top roof has no camouflage at all and gives us a very good overview how the roof line is different, when compared to the coupe. That is the only main difference.
Under the bonnet is the new 3.0-litre six-cylinder in-line engine with M TwinPower Turbo technology delivering 425bhp and 550Nm of torque, replacing the naturally aspirated V8.
In standard, the engine is linked to a new six-speed manual gearbox with new throttle blipping function, that is 12kg lighter than its predecessor. 7-speed M DCT will be optional.
The M4 Coupe goes from 0-62 mph in 4.3 seconds with the manual and 4.1 seconds with the optional 7-speed M DCT. The Convertible is expected to be a bit slower, due to a more complex and heavier roof system.
Now that the prototype has lost most of its camouflage, we expect it to debut in the near future. Very likely already next month at the Geneva Motor Show.