Bmw ActiveHybrid X6 vs Porsche Cayenne S 958.2 : 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 100%Reading the duel
At 400 m, Porsche Cayenne S leads by 0.22 s. At 1 000 m, Bmw ActiveHybrid X6 takes the lead by 0.21 s.
Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 100 %.
Bmw ActiveHybrid X6 vs Cayenne S: chronicle of a drag race at 251 km/h
The launch: 0 to 100 km/h
Off the line, the Cayenne S hits 100 km/h in 5.13 s versus 5.60 s for the Bmw ActiveHybrid X6. At this point, the Cayenne S leads by 0.47 s and sits roughly 12 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Cayenne S is doing 137 km/h against 141 km/h for the Bmw ActiveHybrid X6. The gap is 0.36 s. The challenger starts to claw back ground.
At 400 metres standing start, the Cayenne S crosses the line in 13.45 s versus 13.66 s. The 0.21 s gap represents roughly 10 m of track — two to three car lengths.
Beyond 400 metres: top speed comes into play
Past 400 metres, the situation changes. The Bmw ActiveHybrid X6 maxes out at 236 km/h while the Cayenne S keeps accelerating towards 251 km/h. At 600 metres, the gap has dropped to 0.07 s.
Around 709 metres, both vehicles are level. This is the inversion point: the Bmw ActiveHybrid X6 overcomes its launch deficit thanks to a 15 km/h higher top speed.
At 1,000 metres, the Bmw ActiveHybrid X6 finishes in 24.29 s versus 24.50 s. The 0.21 s delta shows an extremely tight race.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Bmw ActiveHybrid X6 is capped at 236 km/h, the Cayenne S at 257 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 (5.05 kg/hp vs 4.96 kg/hp) and transmission (Automatic vs Unknown).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.11 seconds. The 0.47 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche Cayenne S is slightly faster than the Bmw ActiveHybrid X6 to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.