The Geneva Motor Show is less than a month away and a new report is suggesting BMW will use the event to introduce a new M concept.

Nothing is official but BMW Blog says the mysterious concept is “based on the 8-Series and M8 platform” but will be different from the M8 Coupe which was previewed last year. The report goes on to say the concept will preview a production model but it won’t be a new supercar.

Assuming the report is correct, BMW could use the show to preview the M8 Convertible. The model has already been spied on a handful of occasions and the car is expected to use the same 4.4-liter TwinPower Turbo V8 engine that resides in the M5.

While it produces 600 PS (441 kW) and 750 Nm (553 lb-ft) of torque in the sedan, BMW M boss Frank van Meel has suggested the output could be increased in the M8 to help justify its premium position and price tag. Reports have suggested the model could be rated at approxomitely 623 PS (458 kW) which would be on par with the rumored M5 Competition package.

Of course, the concept could also be something else and another possible candidate is the Gran Coupe variant. The model is expected to be launched in 2019 so BMW could use the show to build anticipation for the upcoming sedan.