Bmw X4 M40i G02 vs Porsche Cayenne (8-speed Tiptronic S) 958.1 : which one is faster?
0-100 km/h, 400 m, 1000 m, top speed — physics simulation calibrated on 7 measures.
400 mSimulation 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 %.
Bmw X4 M40i vs Cayenne (8-speed Tiptronic S): chronicle of a drag race at 250 km/h
The launch: 0 to 100 km/h
Off the line, the Bmw X4 M40i hits 100 km/h in 4.75 s versus 7.55 s for the Cayenne (8-speed Tiptronic S). At this point, the Bmw X4 M40i leads by 2.80 s and sits roughly 20 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Bmw X4 M40i is doing 142 km/h against 119 km/h for the Cayenne (8-speed Tiptronic S). The gap is 1.67 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw X4 M40i crosses the line in 12.98 s versus 15.50 s. The 2.52 s gap represents roughly 100 m of track — a gap visible to the naked eye.
Beyond 400 metres: top speed comes into play
Past 400 metres, the Bmw X4 M40i continues to build its lead. At 600 metres, it runs at 198 km/h versus 166 km/h. At 1,000 metres, the Bmw X4 M40i finishes in 23.62 s versus 28.16 s, with a 4.55 s lead.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Bmw X4 M40i is capped at 250 km/h, the Cayenne (8-speed Tiptronic S) at 230 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 (5.18 kg/hp vs 6.68 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.88 seconds. The 2.80 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Bmw X4 M40i has a clear edge over the Porsche Cayenne (8-speed Tiptronic S) to 100 km/h. This difference is clearly noticeable in spirited driving and widens on standing starts.