While BMW recently introduced the latest generation of BMW M4, a tuner called Cardiologie introduced upgrade kits for the current generation.
The current generation of the BMW M4 uses a 3-liter inline-6 turbocharged engine that can produce 425 horsepower and 550 Nm of torque, but the tuner can increase these numbers to 513 horsepower and 680 nm of torque with a software boost.
With the Cardiologie Stage 1 upgrade kit installed, BMW M4 Cabrio can hit 300 km/h which is 50 km/h more than its stock top speed. While the tuner hasn't mentioned 0-100kph acceleration figures but the car must be faster than the standard M4 with 4.4 seconds of acceleration.
The Cardiologie kit is not just limited to technical upgrades and the car is also equipped with 20-inch wheels. The tuner also upgraded the suspension system by using Eibach sport springs. This springs not only lowering the car’s ride height but also improves M4 convert tables handling and stability.