The M4 Competition Package Cabriolet pairs the convertible body with the Competition-tuned version of the S55 3.0-litre twin-turbocharged inline-six, producing 450 hp and 550 Nm, channelled through an automatic transmission to the rear wheels. Suspension and chassis calibration are firmer than the standard M4 Cabriolet, and the Competition Package adds sport-specific exhaust tuning and revised active M differential settings. The 4.3-second 0-100 km/h time reflects the added weight of the folding metal roof relative to the coupe variants.
