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ACayennePHEVvsBX6Hybrid
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  • SpecsCayenne · X6

Porsche Cayenne E-Hybrid vs BMW X6 xDrive40i G06: which is truly faster?

Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.

large SUV · 2019 vs 2021 · Methodology
PorschePHEVFaster

Cayenne E-Hybrid

461 hp · 700 Nm · 2,295 kg · 2019

VS
BMWHybrid

X6 xDrive40i G06

333 hp · 450 Nm · 2,095 kg · 2021

Result · 0–100 km/h

APorsche Cayenne E-Hybrid

4.74 s

Gap0.93 sin favour of Cayenne E-Hybrid
BBMW X6 xDrive40i G06

5.67 s

Summary · Caralogy simulation
MeasureCayenne E-HybridX6 xDrive40i G06Gap
0–100 km/h4.74 s5.67 s0.93 s · Cayenne E-Hybrid
400 m standing start13.02 s13.94 s0.92 s · Cayenne E-Hybrid
1,000 m standing start23.82 s25.47 s1.65 s · Cayenne E-Hybrid
Top speed (electronically limited)253 km/h248 km/h5 km/h · Cayenne E-Hybrid
Power-to-weight ratio4.98 kg/hp6.29 kg/hpbetter ratio · Cayenne E-Hybrid

Watch the race

Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.

PorschePHEVCayenne E-Hybrid
Speed
0km/h
Timer
0,00s
Distance
0m
BMWHybridX6 xDrive40i G06
Speed
0km/h
Timer
0,00s
Distance
0m
100 m
200 m
300 m
400 m
500 m
600 m
700 m
800 m
900 m
1000 m
0m → 1000m
Gap0m

Stage-by-stage comparison

Simulated performance at each stage. Best value in bold.
StageCayenne E-HybridX6 xDrive40i G06
0–30 km/h1.17 s1.34 s
0–50 km/h1.94 s2.25 s
0–80 km/h3.37 s4.09 s
0–100 km/h4.74 s5.67 s
0–120 km/h6.35 s7.68 s
0–160 km/h10.95 s13.36 s
0–200 km/h18.13 s23.07 s
400 m standing start13.02 s13.94 s
1,000 m standing start23.82 s25.47 s
Top speed253 km/h248 km/h

Parameters and assumptions

Simulation

Start
Standing, straight line
Surface
Dry asphalt, 23°C
Wind
None
Driver
1 person, 75 kg

Calibration

Splits
0–100, 0–200 manufacturer
Power curve
Real measurement (Caralogy)
VMax
Manufacturer limited
Transmission
Losses integrated in model

Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

Porsche

Cayenne E-Hybrid

4,98kg/hpratio better by 1,31 kg/hp
CharacteristicValueDetail
Power461 hpV6
Torque700 Nm
Weight2 295 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxTORQUE_CONVERTER
BMW

X6 xDrive40i G06

6,29kg/hpcompensated by −200 kg
CharacteristicValueDetail
Power333 hp6 cyl
Torque450 Nm
Weight2 095 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the Cayenne E-Hybrid hits 100 km/h in 4.74 s versus 5.67 s for the X6 xDrive40i. The instant torque of 700 Nm from the electric motor makes the difference. At this point, the Cayenne E-Hybrid leads by 0.93 s and sits roughly 9 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Cayenne E-Hybrid is doing 141 km/h against 132 km/h for the X6 xDrive40i. The gap is 0.62 s. The challenger starts to claw back ground.

At 400 metres standing start, the Cayenne E-Hybrid crosses the line in 13.01 s versus 13.94 s. The 0.92 s gap represents roughly 41 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Cayenne E-Hybrid continues to build its lead. At 600 metres, it runs at 195 km/h versus 182 km/h. At 1,000 metres, the Cayenne E-Hybrid finishes in 23.81 s versus 25.47 s, with a 1.65 s lead. Both vehicles have similar top speeds (253 vs 248 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 E-Hybrid is capped at 253 km/h, the X6 xDrive40i at 248 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 8.87 seconds. The 0.93 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

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Frequently asked questions

Over 0–100 km/h, Cayenne E-Hybrid wins (4,74 s vs 5,67 s).

Cayenne E-Hybrid goes from 0 to 100 km/h in 4,74 seconds (calibrated simulation).

Cayenne E-Hybrid: 461 hp, ratio 4,98 kg/hp. X6 xDrive40i G06: 333 hp, ratio 6,29 kg/hp.

Cayenne E-Hybrid: 253 km/h. X6 xDrive40i G06: 248 km/h.