Porsche Cayenne S E-Hybrid 958.2 vs Bmw X7 M50d : 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 94%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 94 %.
Cayenne S E-Hybrid vs Bmw X7 M50d: chronicle of a drag race at 250 km/h
The launch: 0 to 100 km/h
Off the line, the Bmw X7 M50d hits 100 km/h in 5.49 s versus 5.57 s for the Cayenne S E-Hybrid. The 0.08 s gap is negligible: both vehicles are neck and neck.
From 100 km/h to 400 metres
At 200 metres, the Cayenne S E-Hybrid is doing 131 km/h against 132 km/h for the Bmw X7 M50d. The gap is 0.06 s. The gap remains stable from the start.
At 400 metres standing start, the Bmw X7 M50d crosses the line in 13.82 s versus 13.82 s. The 0.01 s gap represents roughly 0 m of track
Beyond 400 metres: top speed comes into play
Past 400 metres, the Bmw X7 M50d continues to build its lead. At 600 metres, it runs at 184 km/h versus 180 km/h. At 1,000 metres, the Bmw X7 M50d finishes in 25.28 s versus 25.54 s, with a 0.27 s lead. Both vehicles have similar top speeds (237 vs 250 km/h), preventing any comeback.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Cayenne S E-Hybrid is capped at 243 km/h, the Bmw X7 M50d at 250 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 (5.57 kg/hp vs 6.15 kg/hp) and transmission (Unknown vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.76 seconds. The 0.08 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche Cayenne S E-Hybrid and Bmw X7 M50d are virtually tied to 100 km/h. The gap is under a tenth of a second — only the physics engine can settle it step by step.