Open-top cars rarely wind up in tuning shops compared to their fixed-roof counterparts, but this BMW M4 Cabrio was lucky enough to land at G-Power, a German tuning company with plenty of experience working with this exact type of vehicle.
The result is known as the G-Power G4M Bi-Turbo, and it’s been available for ordering for a while now. The base program includes the installation of a Venturi carbon hood, an aero kit and a set of dual-five-spoke forged wheels sporting a coppery finish.
As always with G-Power, the most interesting modifications are found in the engine department. There, the stock 3.0-liter inline-six block has been massaged to 700 PS (690 hp / 515 kW) and 850 Nm (627 lb-ft) of torque. The tuner achieves these numbers with the help of a carbon-fiber air intake, performance downpipes, and a reprogrammed ECU complete with a removed speed limiter. Rounding off the list is a carbon-fiber engine deck lid.
You may want to contact G-Power directly for any further details, like acceleration times. The upgrade to the G-Power G4M Bi-Turbo spec starts from €15,852 in Germany.