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AX6DieselvsBCayennePetrol
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  • SpecsX6 · Cayenne

BMW X6 M50d F16 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 · 2018 vs 2019 · Methodology
BMWDieselFaster

X6 M50d F16

381 hp · 740 Nm · 2,185 kg · 2018

VS
PorschePetrol

Cayenne

340 hp · 450 Nm · 1,985 kg · 2019

Result · 0–100 km/h

ABMW X6 M50d F16

5.29 s

Gap0.34 sin favour of X6 M50d
BPorsche Cayenne

5.63 s

Summary · Caralogy simulation
MeasureX6 M50d F16CayenneGap
0–100 km/h5.29 s5.63 s0.34 s · X6 M50d F16
400 m standing start13.63 s13.87 s0.24 s · X6 M50d F16
1,000 m standing start24.91 s25.36 s0.45 s · X6 M50d F16
Top speed (electronically limited)250 km/h245 km/h5 km/h · X6 M50d F16
Power-to-weight ratio5.73 kg/hp5.84 kg/hpbetter ratio · X6 M50d F16

Watch the race

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

BMWDieselX6 M50d F16
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 M50d F16Cayenne
0–30 km/h1.40 s1.33 s · tight gap
0–50 km/h2.26 s2.24 s · tight gap
0–80 km/h3.83 s4.02 s
0–100 km/h5.29 s5.63 s
0–120 km/h7.14 s7.59 s
0–160 km/h12.41 s13.19 s
0–200 km/h21.42 s23.12 s
400 m standing start13.63 s13.87 s
1,000 m standing start24.91 s25.36 s
Top speed limited250 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 M50d F16

5,73kg/hpratio better by 0,10 kg/hp
CharacteristicValueDetail
Power381 hp6 cyl
Torque740 Nm
Weight2 185 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Porsche

Cayenne

5,84kg/hpcompensated by −200 kg
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 M50d hits 100 km/h in 5.29 s versus 5.63 s for the Cayenne. At this point, the X6 M50d leads by 0.34 s and sits roughly 2 m ahead.

From 100 km/h to 400 metres

At 200 metres, the X6 M50d is doing 135 km/h against 133 km/h for the Cayenne. The gap is 0.15 s. The challenger starts to claw back ground.

At 400 metres standing start, the X6 M50d crosses the line in 13.62 s versus 13.87 s. The 0.24 s gap represents roughly 11 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the X6 M50d continues to build its lead. At 600 metres, it runs at 187 km/h versus 184 km/h. At 1,000 metres, the X6 M50d finishes in 24.91 s versus 25.36 s, with a 0.45 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 245 km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the X6 M50d is capped at 250 (i.e. 155 mph - industry threshold) 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 (5.73 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 8.70 seconds. The 0.34 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.

Instead of X6 M50d F16
Audi Q8 SUV
Instead of Cayenne
Audi Q7 SUVAudi Q7 SUV

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Frequently asked questions

Over 0–100 km/h, X6 M50d F16 wins (5,29 s vs 5,63 s).

X6 M50d F16 goes from 0 to 100 km/h in 5,29 seconds (calibrated simulation).

X6 M50d F16: 381 hp, ratio 5,73 kg/hp. Cayenne: 340 hp, ratio 5,84 kg/hp.

X6 M50d F16: 250 km/h. Cayenne: 245 km/h.