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ACayennevsBX3Petrol
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  • PerformancePerformance0-100, top speed
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  • SpecsCayenne · X3

Porsche Cayenne GTS vs BMW X3 M40i G01: 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 · 2016 vs 2020 · Methodology
PorschePetrol

Cayenne GTS

440 hp · 600 Nm · 2,110 kg · 2016

VS
BMWPetrolFaster

X3 M40i G01

360 hp · 500 Nm · 1,845 kg · 2020

Result · 0–100 km/h

APorsche Cayenne GTS

4.92 s

Gap0.13 sin favour of X3 M40i
BBMW X3 M40i G01

4.78 s

Summary · Caralogy simulation
MeasureCayenne GTSX3 M40i G01Gap
0–100 km/h4.92 s4.78 s0.13 s · X3 M40i G01
400 m standing start13.11 s13.02 s0.09 s · X3 M40i G01
1,000 m standing start23.91 s23.68 s0.23 s · X3 M40i G01
Top speed (electronically limited)262 km/h250 km/h12 km/h · Cayenne GTS
Power-to-weight ratio4.80 kg/hp5.13 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
BMWPetrolX3 M40i G01
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 GTSX3 M40i G01
0–30 km/h1.27 s · tight gap1.28 s
0–50 km/h2.12 s2.12 s · tight gap
0–80 km/h3.56 s3.53 s · tight gap
0–100 km/h4.92 s4.78 s · tight gap
0–120 km/h6.46 s6.35 s · tight gap
0–160 km/h10.84 s10.65 s
0–200 km/h18.05 s17.43 s
400 m standing start13.11 s13.02 s · tight gap
1,000 m standing start23.91 s23.68 s
Top speed limited262 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

4,80kg/hpratio better by 0,33 kg/hp
CharacteristicValueDetail
Power440 hpV6
Torque600 Nm
Weight2 110 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxTORQUE_CONVERTER
BMW

X3 M40i G01

5,13kg/hpcompensated by −265 kg
CharacteristicValueDetail
Power360 hp6 cyl
Torque500 Nm
Weight1 845 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic

The start: 0 to 100 km/h

Off the line, the X3 M40i hits 100 km/h in 4.78 s versus 4.92 s for the Cayenne GTS. The 0.13 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the X3 M40i is doing 142 km/h against 141 km/h for the Cayenne GTS. The gap is 0.06 s. The gap remains stable from the start.

At 400 metres standing start, the X3 M40i crosses the line in 13.02 s versus 13.11 s. The 0.09 s gap represents roughly 4 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, the X3 M40i continues to build its lead. At 600 metres, it runs at 197 km/h versus 195 km/h. At 1,000 metres, the X3 M40i finishes in 23.67 s versus 23.91 s, with a 0.23 s lead. Both vehicles have similar top speeds (262 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 262 km/h, the X3 M40i 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 (4.80 kg/hp vs 5.13 kg/hp) and transmission (Unknown vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.37 seconds. The 0.13 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
Audi SQ5 SUVAudi SQ5 SportbackPorsche Macan GTS

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X3 M40i vs Macan GTS

Frequently asked questions

Over 0–100 km/h, X3 M40i G01 wins (4,78 s vs 4,92 s).

Cayenne GTS goes from 0 to 100 km/h in 4,92 seconds (calibrated simulation).

Cayenne GTS: 440 hp, ratio 4,80 kg/hp. X3 M40i G01: 360 hp, ratio 5,13 kg/hp.

Cayenne GTS: 262 km/h. X3 M40i G01: 250 km/h.