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AX6vsBCayennePetrol
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  • SpecsX6 · Cayenne

BMW X6 M50i G06 vs Porsche Cayenne Coupe: 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 2020 · Methodology
BMWPetrolFaster

X6 M50i G06

530 hp · 750 Nm · 2,240 kg · 2021

VS
PorschePetrol

Cayenne Coupe

340 hp · 450 Nm · 2,115 kg · 2020

Result · 0–100 km/h

ABMW X6 M50i G06

4.25 s

Gap1.51 sin favour of X6 M50i
BPorsche Cayenne Coupe

5.77 s

Summary · Caralogy simulation
MeasureX6 M50i G06Cayenne CoupeGap
0–100 km/h4.25 s5.77 s1.51 s · X6 M50i G06
400 m standing start12.30 s14.00 s1.70 s · X6 M50i G06
1,000 m standing start22.14 s25.67 s3.53 s · X6 M50i G06
Top speed (electronically limited)250 km/h243 km/h7 km/h · X6 M50i G06
Power-to-weight ratio4.23 kg/hp6.22 kg/hpbetter ratio · X6 M50i G06

Watch the race

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

BMWPetrolX6 M50i G06
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrolCayenne Coupe
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 M50i G06Cayenne Coupe
0–30 km/h1.25 s · tight gap1.31 s
0–50 km/h2.06 s · tight gap2.21 s
0–80 km/h3.27 s4.08 s
0–100 km/h4.25 s5.77 s
0–120 km/h5.46 s7.84 s
0–160 km/h8.75 s13.59 s
0–200 km/h13.66 s24.65 s
400 m standing start12.30 s14.00 s
1,000 m standing start22.14 s25.67 s
Top speed limited250 km/h243 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 M50i G06

4,23kg/hpratio better by 1,99 kg/hp
CharacteristicValueDetail
Power530 hp8 cyl
Torque750 Nm
Weight2 240 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Porsche

Cayenne Coupe

6,22kg/hpcompensated by −125 kg
CharacteristicValueDetail
Power340 hpV6
Torque450 Nm
Weight2 115 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxTORQUE_CONVERTER

The start: 0 to 100 km/h

Off the line, the X6 M50i hits 100 km/h in 4.26 s versus 5.77 s for the Cayenne Coupe. At this point, the X6 M50i leads by 1.51 s and sits roughly 7 m ahead.

From 100 km/h to 400 metres

At 200 metres, the X6 M50i is doing 154 km/h against 131 km/h for the Cayenne Coupe. The gap is 0.98 s. The challenger starts to claw back ground.

At 400 metres standing start, the X6 M50i crosses the line in 12.29 s versus 13.99 s. The 1.70 s gap represents roughly 74 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the X6 M50i continues to build its lead. At 600 metres, it runs at 214 km/h versus 181 km/h. At 1,000 metres, the X6 M50i finishes in 22.14 s versus 25.67 s, with a 3.53 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 243 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 M50i is capped at 250 (i.e. 155 mph - industry threshold) km/h, the Cayenne Coupe at 243 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 (4.23 kg/hp vs 6.22 kg/hp) and transmission (Automatic vs Unknown).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.01 seconds. The 1.51 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, X6 M50i G06 wins (4,25 s vs 5,77 s).

X6 M50i G06 goes from 0 to 100 km/h in 4,25 seconds (calibrated simulation).

X6 M50i G06: 530 hp, ratio 4,23 kg/hp. Cayenne Coupe: 340 hp, ratio 6,22 kg/hp.

X6 M50i G06: 250 km/h. Cayenne Coupe: 243 km/h.