Bmw M4 Coupe F82 vs Porsche 911 Carrera 4 Cabriolet 991.2 : which one is faster?
0-100 km/h, 400 m, 1000 m, top speed — physics simulation calibrated on 7 measures.
Simulation de performance
Race simulation at real speed
CONFIDENCE 91%Why this result?
The Porsche 911 Carrera 4 Cabriolet is faster at 0-100 km/h, but the Bmw M4 Coupe compensates at high speed thanks to higher peak power or top speed. At 400 m, Bmw M4 Coupe leads by 0.21 s.
Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 91 %.
Bmw M4 Coupe vs 911 Carrera 4 Cabriolet: chronicle of a drag race at 283 km/h
The launch: 0 to 100 km/h
Off the line, the 911 Carrera 4 Cabriolet hits 100 km/h in 4.37 s versus 4.38 s for the Bmw M4 Coupe. The 0.01 s gap is negligible: both vehicles are neck and neck.
From 100 km/h to 400 metres
At 200 metres, the Bmw M4 Coupe is doing 157 km/h against 152 km/h for the 911 Carrera 4 Cabriolet. The gap is 0.04 s. The gap remains stable from the start.
At 400 metres standing start, the Bmw M4 Coupe crosses the line in 12.21 s versus 12.42 s. The 0.21 s gap represents roughly 11 m of track — two to three car lengths.
Beyond 400 metres: top speed comes into play
Past 400 metres, the Bmw M4 Coupe continues to build its lead. At 600 metres, it runs at 221 km/h versus 212 km/h. At 1,000 metres, the Bmw M4 Coupe finishes in 21.75 s versus 22.38 s, with a 0.63 s lead. Despite a higher top speed (283 km/h), the 911 Carrera 4 Cabriolet never recovers its launch deficit.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Bmw M4 Coupe is capped at 250 km/h, the 911 Carrera 4 Cabriolet at 288 km/h. This isn’t a physical engine limit — it’s a manufacturer choice, usually for tyre safety or homologation reasons. Neither car reaches its true aerodynamic top speed.
With two combustion powertrains, the difference comes down to power-to-weight ratio (3.64 kg/hp vs 4.13 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.40 seconds. The 0.01 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Bmw M4 Coupe is slightly faster than the Porsche 911 Carrera 4 Cabriolet to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.