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AX6HybridvsBCayennePetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsX6 · Cayenne

BMW X6 xDrive40d G06 vs Porsche Cayenne: 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 · 2021 vs 2019 · Methodology
BMWHybrid

X6 xDrive40d G06

340 hp · 700 Nm · 2,215 kg · 2021

VS
PorschePetrol

Cayenne

340 hp · 450 Nm · 1,985 kg · 2019

Result · 0–100 km/h

ABMW X6 xDrive40d G06

5.58 s

Gap0.04 sNot a significant gap
BPorsche Cayenne

5.63 s

Summary · Caralogy simulation
MeasureX6 xDrive40d G06CayenneGap
0–100 km/h5.58 s5.63 s0.04 s · X6 xDrive40d G06
400 m standing start13.91 s13.87 s0.04 s · Cayenne
1,000 m standing start25.49 s25.36 s0.13 s · Cayenne
Top speed (electronically limited)248 km/h245 km/h3 km/h · X6 xDrive40d G06
Power-to-weight ratio6.51 kg/hp5.84 kg/hpbetter ratio · Cayenne

Watch the race

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

BMWHybridX6 xDrive40d G06
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrolCayenne
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.
StageX6 xDrive40d G06Cayenne
0–30 km/h1.35 s1.33 s · tight gap
0–50 km/h2.21 s · tight gap2.24 s
0–80 km/h3.95 s · tight gap4.02 s
0–100 km/h5.58 s · tight gap5.63 s
0–120 km/h7.65 s7.59 s · tight gap
0–160 km/h13.50 s13.19 s
0–200 km/h23.35 s23.12 s
400 m standing start13.91 s13.87 s · tight gap
1,000 m standing start25.49 s25.36 s · tight gap
Top speed248 km/h245 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.

BMW

X6 xDrive40d G06

6,51kg/hpcompensated by −230 kg
CharacteristicValueDetail
Power340 hp6 cyl
Torque700 Nm
Weight2 215 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Porsche

Cayenne

5,84kg/hpratio better by 0,68 kg/hp
CharacteristicValueDetail
Power340 hpV6
Torque450 Nm
Weight1 985 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxTORQUE_CONVERTER

The start: 0 to 100 km/h

Off the line, the X6 xDrive40d hits 100 km/h in 5.59 s versus 5.63 s for the Cayenne. The 0.04 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the X6 xDrive40d is doing 131 km/h against 133 km/h for the Cayenne. The gap is 0.01 s. The gap remains stable from the start.

At 400 metres standing start, the Cayenne crosses the line in 13.87 s versus 13.91 s. The 0.04 s gap represents roughly 2 m of track

Beyond 400 metres: top speed comes into play

Past 400 metres, nothing changes. Same ceiling, same acceleration, same trajectory - both rivals run in formation to the line. The 0.13 s gap at 1,000 metres confirms what the specs already suggested: on track, they’re interchangeable. The real contest happens elsewhere - range, comfort, charging network reliability.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the X6 xDrive40d is capped at 248 km/h, the Cayenne at 245 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 (6.51 kg/hp vs 5.84 kg/hp) and transmission (Automatic vs Unknown).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.87 seconds. The 0.04 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Compare with other alternatives

Swap one of the two models to explore an equivalent duel in the same segment.

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Frequently asked questions

Over 0–100 km/h, X6 xDrive40d G06 and Cayenne are neck and neck (5,58 s vs 5,63 s, no significant gap).

X6 xDrive40d G06 goes from 0 to 100 km/h in 5,58 seconds (calibrated simulation).

X6 xDrive40d G06: 340 hp, ratio 6,51 kg/hp. Cayenne: 340 hp, ratio 5,84 kg/hp.

X6 xDrive40d G06: 248 km/h. Cayenne: 245 km/h.