Bmw M440i G22 vs Porsche Boxster S 981 : 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 97%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 97 %.
Bmw M440i vs Boxster S: chronicle of a drag race at 262 km/h
The launch: 0 to 100 km/h
Off the line, the Bmw M440i hits 100 km/h in 4.83 s versus 5.08 s for the Boxster S. At this point, the Bmw M440i leads by 0.25 s and sits roughly 3 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Bmw M440i is doing 146 km/h against 143 km/h for the Boxster S. The gap is 0.20 s. The gap remains stable from the start.
At 400 metres standing start, the Bmw M440i crosses the line in 12.93 s versus 13.23 s. The 0.30 s gap represents roughly 15 m of track — two to three car lengths.
Beyond 400 metres: top speed comes into play
Past 400 metres, the Bmw M440i continues to build its lead. At 600 metres, it runs at 205 km/h versus 198 km/h. At 1,000 metres, the Bmw M440i finishes in 23.15 s versus 23.87 s, with a 0.72 s lead. Both vehicles have similar top speeds (250 vs 262 km/h), preventing any comeback.
What the numbers don’t tell you
The Bmw M440i features all-wheel drive (AWD) against the Boxster S’s RWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.
Both rivals are electronically governed, but not at the same level: the Bmw M440i is capped at 250 km/h, the Boxster S at 274 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 (4.53 kg/hp vs 4.32 kg/hp) and transmission (Automatic vs Unknown).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.45 seconds. The 0.25 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Bmw M440i is slightly faster than the Porsche Boxster S to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.