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Home›Duel›BMW X3 vs BMW X7

Performance comparison

BMW X3 M40d G01 vs BMW X7 xDrive40d G07: 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.

BMWHybridFaster

X3 M40d G01

340 hp · 700 Nm · 2,020 kg · 2020

VS
BMWHybrid

X7 xDrive40d G07

340 hp · 700 Nm · 2,470 kg · 2021

MotorwayRange & chargingPerformance0-100, top speedConsumptionAnnual TCO

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.

X3 M40d G01X7 xDrive40d G07
0–100 km/h4,99 s−1,13 s6,12 s
400 m standing start13,34 s−1,06 s14,40 s
1,000 m standing start24,47 s−1,99 s26,46 s
Top speed (electronically limited)250 km/h+5 km/h245 km/h
Power-to-weight ratio5,94 kg/hpbetter ratio7,26 kg/hp

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
BMWHybridX7 xDrive40d G07
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. Winner in green.

PalierX3 M40d G01X7 xDrive40d G07
0–30 km/h1,23 s1,35 stight gap
0–50 km/h2,00 s2,25 s
0–80 km/h3,55 s4,26 s
0–100 km/h4,99 s6,12 s
0–120 km/h6,82 s8,49 s
0–160 km/h11,90 s15,31 s
0–200 km/h20,11 s27,30 s
400 m standing start13,34 s14,40 s
1,000 m standing start24,47 s26,46 s
Top speed limited250 km/h245 km/h

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/hpratio better by 1,32 kg/hp
CharacteristicValueDetail
Power340 hp6 cyl
Torque700 Nm
Weight2 020 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic
BMW

X7 xDrive40d G07

7,26kg/hpcompensated by −450 kg
CharacteristicValueDetail
Power340 hp6 cyl
Torque700 Nm
Weight2 470 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the Bmw X3 M40d hits 100 km/h in 4.99 s versus 6.12 s for the Bmw X7 xDrive40d. At this point, the Bmw X3 M40d leads by 1.13 s and sits roughly 9 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Bmw X3 M40d is doing 137 km/h against 126 km/h for the Bmw X7 xDrive40d. The gap is 0.66 s. The challenger starts to claw back ground.

At 400 metres standing start, the Bmw X3 M40d crosses the line in 13.34 s versus 14.39 s. The 1.05 s gap represents roughly 45 m of track — a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Bmw X3 M40d continues to build its lead. At 600 metres, it runs at 189 km/h versus 174 km/h. At 1,000 metres, the Bmw X3 M40d finishes in 24.47 s versus 26.45 s, with a 1.99 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 Bmw X3 M40d is capped at 250 (i.e. 155 mph — industry threshold) km/h, the Bmw X7 xDrive40d 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 7.26 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.90 seconds. The 1.13 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 X3 M40d G01
Mercedes G 450 dMercedes G 450 dBmw X5 xDrive40i
Instead of X7 xDrive40d G07
Mercedes G 450 dMercedes G 450 dBmw X5 xDrive40i

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Frequently asked questions

Sur 0–100 km/h, X3 M40d G01 gagne (4,99 s vs 6,12 s).

X3 M40d G01 passe de 0 à 100 km/h en 4,99 secondes (simulation calibrée).

X3 M40d G01 : 340 hp, ratio 5,94 kg/hp. X7 xDrive40d G07 : 340 hp, ratio 7,26 kg/hp.

X3 M40d G01 : 250 km/h. X7 xDrive40d G07 : 245 km/h.