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ACayennevsBX5Petrol
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  • PerformancePerformance0-100, top speed
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  • SpecsCayenne · X5

Porsche Cayenne Turbo vs BMW X5 M50i G05: 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
PorschePetrolFaster

Cayenne Turbo

550 hp · 770 Nm · 2,175 kg · 2019

VS
BMWPetrol

X5 M50i G05

530 hp · 750 Nm · 2,260 kg · 2021

Result · 0–100 km/h

APorsche Cayenne Turbo

3.87 s

Gap0.51 sin favour of Cayenne Turbo
BBMW X5 M50i G05

4.38 s

Summary · Caralogy simulation
MeasureCayenne TurboX5 M50i G05Gap
0–100 km/h3.87 s4.38 s0.51 s · Cayenne Turbo
400 m standing start12.06 s12.48 s0.42 s · Cayenne Turbo
1,000 m standing start22.15 s22.56 s0.41 s · Cayenne Turbo
Top speed (electronically limited)285 km/h250 km/h35 km/h · Cayenne Turbo
Power-to-weight ratio3.95 kg/hp4.26 kg/hpbetter ratio · Cayenne Turbo

Watch the race

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

PorschePetrolCayenne Turbo
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrolX5 M50i G05
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 TurboX5 M50i G05
0–30 km/h0.98 s1.24 s
0–50 km/h1.64 s2.06 s
0–80 km/h2.80 s3.33 s
0–100 km/h3.87 s4.38 s
0–120 km/h5.14 s5.69 s
0–160 km/h8.78 s9.22 s
0–200 km/h14.13 s14.64 s
400 m standing start12.06 s12.48 s
1,000 m standing start22.15 s22.56 s
Top speed limited285 km/h250 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 Turbo

3,95kg/hpratio better by 0,31 kg/hp
CharacteristicValueDetail
Power550 hpV8
Torque770 Nm
Weight2 175 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxTORQUE_CONVERTER
BMW

X5 M50i G05

4,26kg/hpcompensated by −85 kg
CharacteristicValueDetail
Power530 hp8 cyl
Torque750 Nm
Weight2 260 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the Cayenne Turbo hits 100 km/h in 3.87 s versus 4.39 s for the X5 M50i. At this point, the Cayenne Turbo leads by 0.51 s and sits roughly 9 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Cayenne Turbo is doing 151 km/h against 150 km/h for the X5 M50i. The gap is 0.41 s. The challenger starts to claw back ground.

At 400 metres standing start, the Cayenne Turbo crosses the line in 12.06 s versus 12.48 s. The 0.42 s gap represents roughly 21 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Cayenne Turbo continues to build its lead. At 600 metres, it runs at 208 km/h versus 208 km/h. At 1,000 metres, the Cayenne Turbo finishes in 22.14 s versus 22.56 s, with a 0.42 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the Cayenne Turbo is capped at 285 km/h, the X5 M50i at 250 (i.e. 155 mph - industry threshold) 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 (3.95 kg/hp vs 4.26 kg/hp) and transmission (Unknown vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.43 seconds. The 0.51 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 Cayenne Turbo
Porsche Cayenne Turbo SPorsche Cayenne TurboPorsche Cayenne Turbo Coupe
Instead of X5 M50i G05
Audi SQ7 SUVBMW X5 M50i

Other duels you might be interested in

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Cayenne Turbo vs X5 M50i

BMWVSPorsche

X5 M50i vs Cayenne Turbo

PorscheVSBMW

Cayenne Turbo vs X6 M50i

BMWVSPorsche

X5 M50i vs Cayenne Turbo

Frequently asked questions

Over 0–100 km/h, Cayenne Turbo wins (3,87 s vs 4,38 s).

Cayenne Turbo goes from 0 to 100 km/h in 3,87 seconds (calibrated simulation).

Cayenne Turbo: 550 hp, ratio 3,95 kg/hp. X5 M50i G05: 530 hp, ratio 4,26 kg/hp.

Cayenne Turbo: 285 km/h. X5 M50i G05: 250 km/h.