BMW iX xDrive50 I20 vs Porsche Cayenne S E3.1 : 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 %.
iX xDrive50 vs Cayenne S: chronicle of a drag race at 264 km/h
The launch: 0 to 100 km/h
Off the line, the Cayenne S hits 100 km/h in 4.64 s versus 4.69 s for the iX xDrive50. Despite lacking instant torque, 440 hp of power compensates. The 0.05 s gap is negligible: both vehicles are neck and neck.
From 100 km/h to 400 metres
At 200 metres, the Cayenne S is doing 145 km/h against 144 km/h for the iX xDrive50. The gap is 0.10 s. The gap remains stable from the start.
At 400 metres standing start, the Cayenne S crosses the line in 12.79 s versus 12.93 s. The 0.14 s gap represents roughly 7 m of track — barely a car length.
Beyond 400 metres: top speed comes into play
Past 400 metres, the Cayenne S continues to build its lead. At 600 metres, it runs at 202 km/h versus 200 km/h. At 1,000 metres, the Cayenne S finishes in 23.26 s versus 23.92 s, with a 0.66 s lead.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the iX xDrive50 is capped at 200 km/h, the Cayenne S at 264 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.
Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.07 seconds. The 0.05 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
BMW iX xDrive50 is slightly faster than the Porsche Cayenne S to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.