Porsche 911 R 991.2 vs Bmw M4 Convertible F82 : which one is faster?
0-100 km/h, 400 m, 1000 m, top speed — physics simulation calibrated on 7 measures.
400 mSimulation de performance
Race simulation at real speed
CONFIDENCE 97%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 97 %.
911 R vs Bmw M4 Convertible: chronicle of a drag race at 325 km/h
The launch: 0 to 100 km/h
Off the line, the 911 R hits 100 km/h in 3.78 s versus 4.69 s for the Bmw M4 Convertible. At this point, the 911 R leads by 0.91 s and sits roughly 11 m ahead.
From 100 km/h to 400 metres
At 200 metres, the 911 R is doing 166 km/h against 151 km/h for the Bmw M4 Convertible. The gap is 0.84 s. The gap remains stable from the start.
At 400 metres standing start, the 911 R crosses the line in 11.38 s versus 12.64 s. The 1.27 s gap represents roughly 65 m of track — a gap visible to the naked eye.
Beyond 400 metres: top speed comes into play
Past 400 metres, the 911 R continues to build its lead. At 600 metres, it runs at 239 km/h versus 213 km/h. At 1,000 metres, the 911 R finishes in 20.19 s versus 22.51 s, with a 2.32 s lead.
What the numbers don’t tell you
Electronically capped at 250 km/h, the Bmw M4 Convertible never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor — it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.
With two combustion powertrains, the difference comes down to power-to-weight ratio (2.74 kg/hp vs 4.15 kg/hp) and transmission (Manual vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.66 seconds. The 0.91 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche 911 R has a clear edge over the Bmw M4 Convertible to 100 km/h. This difference is clearly noticeable in spirited driving and widens on standing starts.