Bmw M4 Competition with M xDrive G82 vs Porsche 2020 911 Carrera 4S 992 : 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 Competition with M xDrive vs 2020 911 Carrera 4S: chronicle of a drag race at 306 km/h
The launch: 0 to 100 km/h
Off the line, the 2020 911 Carrera 4S hits 100 km/h in 3.36 s versus 3.56 s for the Bmw M4 Competition with M xDrive. At this point, the 2020 911 Carrera 4S leads by 0.20 s and sits roughly 4 m ahead.
From 100 km/h to 400 metres
At 200 metres, the 2020 911 Carrera 4S is doing 162 km/h against 162 km/h for the Bmw M4 Competition with M xDrive. The gap is 0.14 s. The gap remains stable from the start.
At 400 metres standing start, the 2020 911 Carrera 4S crosses the line in 11.33 s versus 11.43 s. The 0.10 s gap represents roughly 6 m of track — barely a car length.
Beyond 400 metres: top speed comes into play
Past 400 metres, the gap narrows. The Bmw M4 Competition with M xDrive maxes out at 250 km/h while the 2020 911 Carrera 4S keeps accelerating towards 306 km/h. At 600 metres, the gap has dropped to 0.09 s.
At 1,000 metres, the 2020 911 Carrera 4S finishes in 20.73 s versus 20.75 s, with just 0.02 s to spare. The Bmw M4 Competition with M xDrive fails to fully close the launch gap.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Bmw M4 Competition with M xDrive is capped at 250 km/h, the 2020 911 Carrera 4S at 306 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 (3.35 kg/hp vs 3.52 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 5.15 seconds. The 0.20 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche 2020 911 Carrera 4S is slightly faster than the Bmw M4 Competition with M xDrive to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.