Based on the top-spec M240i, the German tuning firm took nearly three years ... Manhart employs its in-house developed MHtronik powerbox to squeeze up to 434 horsepower and 443 lb-ft of torque ...

The BMW M2 is arguably the best sports car in the brand’s current line-up ... and either the Manhart MHtronik powerbox or a factory ECU remap, power has been lifted to 718 hp.

German tuner Manhart is known for tuning performance models most often ... Sounds Like A V12 Lamborghini Manhart also developed the MHTronik Powerbox that extracts more juice from the dual motors ...