Bmw i4 M50 xDrive G26 vs Porsche Cayenne Turbo Coupe E3.1 : 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 97%The Cayenne Turbo reaches 100 km/h first (3.84 s vs 3.92 s), but the Bmw i4 is ahead at every metre of the race. Explanation: the Bmw i4 accelerates harder at low speed and builds a distance gap before either car hits 100 km/h.
Why this result?
The Porsche Cayenne Turbo Coupe is faster at 0-100 km/h, but the Bmw i4 M50 xDrive compensates at high speed thanks to higher peak power or top speed. At 400 m, Bmw i4 M50 xDrive leads by 0.07 s.
Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 97 %.
Bmw i4 M50 xDrive vs Cayenne Turbo Coupe: chronicle of a drag race at 285 km/h
The launch: 0 to 100 km/h
Off the line, the Cayenne Turbo Coupe hits 100 km/h in 3.84 s versus 3.92 s for the Bmw i4 M50 xDrive. Despite lacking instant torque, 520 hp of power compensates. 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 Turbo Coupe is doing 150 km/h against 155 km/h for the Bmw i4 M50 xDrive. The gap is 0.09 s. The gap remains stable from the start.
At 400 metres standing start, the Bmw i4 M50 xDrive crosses the line in 12.01 s versus 12.07 s. The 0.07 s gap represents roughly 3 m of track — barely a car length.
Beyond 400 metres: top speed comes into play
Past 400 metres, the Bmw i4 M50 xDrive continues to build its lead. At 600 metres, it runs at 216 km/h versus 206 km/h. At 1,000 metres, the Bmw i4 M50 xDrive finishes in 21.97 s versus 22.22 s, with a 0.26 s lead. Despite a higher top speed (285 km/h), the Cayenne Turbo Coupe never recovers its launch deficit.
What the numbers don’t tell you
On paper, the Bmw i4 M50 xDrive combines 544 hp, 795 Nm and 2,215 kg — a clear theoretical edge over the Cayenne Turbo Coupe. Yet the Cayenne Turbo Coupe launches quicker. At standstill, both motors deliver peak torque from 0 rpm: the decisive factor is no longer raw power, but available grip. If the Cayenne Turbo Coupe has a better traction coefficient (tyres, weight distribution, traction control calibration), it puts down more force despite inferior specs — exactly what the simulation reflects, calibrated on manufacturer 0-100 km/h times.
Both rivals are electronically governed, but not at the same level: the Bmw i4 M50 xDrive is capped at 225 km/h, the Cayenne Turbo Coupe at 285 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 6.03 seconds. The 0.08 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche Cayenne Turbo Coupe is slightly faster than the Bmw i4 M50 xDrive to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.