The latest John Cooper Works model was unveiled in Detroit this week. This is based on a traditional Mini with retro styling and good handling but also with extra performance. However, there is now an extra twist with what looks like a convertible version in the mix. A prototype of what looks like a John Cooper Works convertible has been seen testing in the cold weather in Scandinavia. It certainly has the look of a fabric roof, which gives a clue as to it being the convertible. The convertible version of the third generation cooper has not yet been revealed and it is expected that it will have a soft top that folds up at the back when open behind the rear seats. It is possible that this could fold down more into the back of the car but as this one has the roof up, it is impossible to see how it will fold up. The prototype does look like it has the new John Cooper Works hatch body kit. The flared wheel arches, for example can be seen as well as the dual central exhaust tips and the big air vents. The wheels look good in the flared fenders but have snow tires on to fit with the testing climate. There look to be big brakes there as well. It is thought that there will be the same 2.0 litre turbo engine as in the hard top version of the car which is capable of 228 horsepower and 235 lb/ft torque. It is possible that leading on from this, that there could be other convertibles in the pipeline for Mini as well perhaps the Clubman wagon for example. It could be worth keeping a look out.