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AX3HybridvsBCayennePetrol
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  • SpecsX3 · Cayenne

BMW X3 M40d G01 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.

family SUV · 2020 vs 2019 · Methodology
BMWHybridFaster

X3 M40d G01

340 hp · 700 Nm · 2,020 kg · 2020

VS
PorschePetrol

Cayenne

340 hp · 450 Nm · 1,985 kg · 2019

Result · 0–100 km/h

ABMW X3 M40d G01

4.99 s

Gap0.64 sin favour of X3 M40d
BPorsche Cayenne

5.63 s

Summary · Caralogy simulation
MeasureX3 M40d G01CayenneGap
0–100 km/h4.99 s5.63 s0.64 s · X3 M40d G01
400 m standing start13.34 s13.87 s0.53 s · X3 M40d G01
1,000 m standing start24.47 s25.36 s0.89 s · X3 M40d G01
Top speed (electronically limited)250 km/h245 km/h5 km/h · X3 M40d G01
Power-to-weight ratio5.94 kg/hp5.84 kg/hpbetter ratio · Cayenne

Watch the race

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

BMWHybridX3 M40d G01
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.
StageX3 M40d G01Cayenne
0–30 km/h1.23 s · tight gap1.33 s
0–50 km/h2.00 s2.24 s
0–80 km/h3.55 s4.02 s
0–100 km/h4.99 s5.63 s
0–120 km/h6.82 s7.59 s
0–160 km/h11.90 s13.19 s
0–200 km/h20.11 s23.12 s
400 m standing start13.34 s13.87 s
1,000 m standing start24.47 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

X3 M40d G01

5,94kg/hp
CharacteristicValueDetail
Power340 hp6 cyl
Torque700 Nm
Weight2 020 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic
Porsche

Cayenne

5,84kg/hpratio better by 0,10 kg/hp
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 X3 M40d hits 100 km/h in 4.99 s versus 5.63 s for the Cayenne. At this point, the X3 M40d leads by 0.64 s and sits roughly 7 m ahead.

From 100 km/h to 400 metres

At 200 metres, the X3 M40d is doing 137 km/h against 133 km/h for the Cayenne. The gap is 0.39 s. The challenger starts to claw back ground.

At 400 metres standing start, the X3 M40d crosses the line in 13.34 s versus 13.87 s. The 0.53 s gap represents roughly 24 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the X3 M40d continues to build its lead. At 600 metres, it runs at 189 km/h versus 184 km/h. At 1,000 metres, the X3 M40d finishes in 24.47 s versus 25.36 s, with a 0.89 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 X3 M40d 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 (5.94 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 0.64 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, X3 M40d G01 wins (4,99 s vs 5,63 s).

X3 M40d G01 goes from 0 to 100 km/h in 4,99 seconds (calibrated simulation).

X3 M40d G01: 340 hp, ratio 5,94 kg/hp. Cayenne: 340 hp, ratio 5,84 kg/hp.

X3 M40d G01: 250 km/h. Cayenne: 245 km/h.