Bmw M4 Convertible F82 vs Porsche 911 Carrera 4 991.2 : 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%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 91 %.
Bmw M4 Convertible vs 911 Carrera 4: chronicle of a drag race at 286 km/h
The launch: 0 to 100 km/h
Off the line, the 911 Carrera 4 hits 100 km/h in 4.16 s versus 4.69 s for the Bmw M4 Convertible. At this point, the 911 Carrera 4 leads by 0.53 s and sits roughly 7 m ahead.
From 100 km/h to 400 metres
At 200 metres, the 911 Carrera 4 is doing 155 km/h against 151 km/h for the Bmw M4 Convertible. The gap is 0.40 s. The challenger starts to claw back ground.
At 400 metres standing start, the 911 Carrera 4 crosses the line in 12.19 s versus 12.64 s. The 0.46 s gap represents roughly 24 m of track — two to three car lengths.
Beyond 400 metres: top speed comes into play
Past 400 metres, the 911 Carrera 4 continues to build its lead. At 600 metres, it runs at 215 km/h versus 213 km/h. At 1,000 metres, the 911 Carrera 4 finishes in 22.00 s versus 22.51 s, with a 0.51 s lead.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Bmw M4 Convertible is capped at 250 km/h, the 911 Carrera 4 at 291 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 (4.15 kg/hp vs 3.95 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.66 seconds. The 0.53 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche 911 Carrera 4 is slightly faster than the Bmw M4 Convertible to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.