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AX5PetrolvsB120dDiesel
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  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsX5 · 120d

BMW X5 M Competition G05 vs BMW 120d F40: 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

X5 M Competition G05

625 hp · 750 Nm · 2,335 kg · 2021

VS
BMWDiesel

120d F40

190 hp · 400 Nm · 1,450 kg · 2020

Result · 0–100 km/h

ABMW X5 M Competition G05

3.83 s

Gap3.55 sin favour of X5 M Competition
BBMW 120d F40

7.38 s

Summary · Caralogy simulation
MeasureX5 M Competition G05120d F40Gap
0–100 km/h3.83 s7.38 s3.55 s · X5 M Competition G05
400 m standing start11.95 s15.41 s3.46 s · X5 M Competition G05
1,000 m standing start21.80 s27.90 s6.10 s · X5 M Competition G05
Top speed (electronically limited)250 km/h231 km/h19 km/h · X5 M Competition G05
Power-to-weight ratio3.74 kg/hp7.63 kg/hpbetter ratio · X5 M Competition G05

Watch the race

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

BMWPetrolX5 M Competition G05
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel120d F40
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.
StageX5 M Competition G05120d F40
0–30 km/h1.06 s1.87 s
0–50 km/h1.73 s3.04 s
0–80 km/h2.90 s5.29 s
0–100 km/h3.83 s7.38 s
0–120 km/h5.02 s9.97 s
0–160 km/h8.23 s17.66 s
0–200 km/h13.32 s32.84 s
400 m standing start11.95 s15.41 s
1,000 m standing start21.80 s27.90 s
Top speed limited250 km/h231 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

X5 M Competition G05

3,74kg/hpratio better by 3,90 kg/hp
CharacteristicValueDetail
Power625 hpPending
Torque750 Nm
Weight2 335 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed M Steptronic transmission with Drivelogic
BMW

120d F40

7,63kg/hpcompensated by −885 kg
CharacteristicValueDetail
Power190 hpPending
Torque400 Nm
Weight1 450 kgmanufacturer kerb weight
Drivetrain-
Gearbox8-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the X5 M Competition hits 100 km/h in 3.83 s versus 7.38 s for the 120d. At this point, the X5 M Competition leads by 3.55 s and sits roughly 24 m ahead.

From 100 km/h to 400 metres

At 200 metres, the X5 M Competition is doing 155 km/h against 121 km/h for the 120d. The gap is 2.34 s. The challenger starts to claw back ground.

At 400 metres standing start, the X5 M Competition crosses the line in 11.94 s versus 15.41 s. The 3.47 s gap represents roughly 137 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the X5 M Competition continues to build its lead. At 600 metres, it runs at 215 km/h versus 168 km/h. At 1,000 metres, the X5 M Competition finishes in 21.80 s versus 27.90 s, with a 6.10 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the X5 M Competition is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 120d at 231 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 (3.74 kg/hp vs 7.63 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.54 seconds. The 3.55 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Other duels you might be interested in

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Frequently asked questions

Over 0–100 km/h, X5 M Competition G05 wins (3,83 s vs 7,38 s).

X5 M Competition G05 goes from 0 to 100 km/h in 3,83 seconds (calibrated simulation).

X5 M Competition G05: 625 hp, ratio 3,74 kg/hp. 120d F40: 190 hp, ratio 7,63 kg/hp.

X5 M Competition G05: 250 km/h. 120d F40: 231 km/h.