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ACayennePetrolvsBX4Diesel
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  • PerformancePerformance0-100, top speed
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  • SpecsCayenne · X4

Porsche Cayenne GTS vs BMW X4 M40d G02: 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 · 2013 vs 2021 · Methodology
PorschePetrol

Cayenne GTS

420 hp · 600 Nm · 2,085 kg · 2013

VS
BMWDieselFaster

X4 M40d G02

340 hp · 700 Nm · 2,020 kg · 2021

Result · 0–100 km/h

APorsche Cayenne GTS

5.56 s

Gap0.75 sin favour of X4 M40d
BBMW X4 M40d G02

4.81 s

Summary · Caralogy simulation
MeasureCayenne GTSX4 M40d G02Gap
0–100 km/h5.56 s4.81 s0.75 s · X4 M40d G02
400 m standing start13.70 s13.13 s0.57 s · X4 M40d G02
1,000 m standing start24.71 s24.04 s0.67 s · X4 M40d G02
Top speed (electronically limited)261 km/h250 km/h11 km/h · Cayenne GTS
Power-to-weight ratio4.96 kg/hp5.94 kg/hpbetter ratio · Cayenne GTS

Watch the race

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

PorschePetrolCayenne GTS
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDieselX4 M40d G02
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 GTSX4 M40d G02
0–30 km/h1.48 s1.18 s
0–50 km/h2.46 s1.93 s
0–80 km/h4.03 s3.44 s
0–100 km/h5.56 s4.81 s
0–120 km/h7.24 s6.53 s
0–160 km/h12.09 s11.29 s
0–200 km/h19.82 s18.75 s
400 m standing start13.70 s13.13 s
1,000 m standing start24.71 s24.04 s
Top speed limited261 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 GTS

4,96kg/hpratio better by 0,98 kg/hp
CharacteristicValueDetail
Power420 hpEngine block and cylinder heads formed in aluminum
Torque600 Nm
Weight2 085 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxUnknown
BMW

X4 M40d G02

5,94kg/hpcompensated by −65 kg
CharacteristicValueDetail
Power340 hp6 cyl
Torque700 Nm
Weight2 020 kgmanufacturer kerb weight
Drivetrain-
Gearbox8-speed Steptronic

The start: 0 to 100 km/h

Off the line, the X4 M40d hits 100 km/h in 4.81 s versus 5.56 s for the Cayenne GTS. At this point, the X4 M40d leads by 0.75 s and sits roughly 11 m ahead.

From 100 km/h to 400 metres

At 200 metres, the X4 M40d is doing 139 km/h against 137 km/h for the Cayenne GTS. The gap is 0.52 s. The challenger starts to claw back ground.

At 400 metres standing start, the X4 M40d crosses the line in 13.13 s versus 13.70 s. The 0.57 s gap represents roughly 27 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the X4 M40d continues to build its lead. At 600 metres, it runs at 193 km/h versus 191 km/h. At 1,000 metres, the X4 M40d finishes in 24.04 s versus 24.70 s, with a 0.67 s lead. Both vehicles have similar top speeds (261 vs 250 (i.e. 155 mph - industry threshold) 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 GTS is capped at 261 km/h, the X4 M40d 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 (4.96 kg/hp vs 5.94 kg/hp) and transmission (Unknown vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.33 seconds. The 0.75 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 GTS
Porsche Macan S
Instead of X4 M40d G02
Audi Q8 SUV

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Cayenne GTS vs Q7 SUV

BMWVSPorsche

X4 M40d vs Macan S

Frequently asked questions

Over 0–100 km/h, X4 M40d G02 wins (4,81 s vs 5,56 s).

Cayenne GTS goes from 0 to 100 km/h in 5,56 seconds (calibrated simulation).

Cayenne GTS: 420 hp, ratio 4,96 kg/hp. X4 M40d G02: 340 hp, ratio 5,94 kg/hp.

Cayenne GTS: 261 km/h. X4 M40d G02: 250 km/h.