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AX3vsBX4Diesel
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  • SpecsX3 · X4

BMW X3 M40d G01 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.

family SUV · 2018 vs 2018 · Methodology
BMWDiesel

X3 M40d G01

326 hp · 680 Nm · 1,895 kg · 2018

VS
BMWDiesel

X4 M40d G02

326 hp · 680 Nm · 1,895 kg · 2018

Result · 0–100 km/h

ABMW X3 M40d G01

4.87 s

Gap0.07 sNot a significant gap
BBMW X4 M40d G02

4.94 s

Summary · Caralogy simulation
MeasureX3 M40d G01X4 M40d G02Gap
0–100 km/h4.87 s4.94 s0.07 s · X3 M40d G01
400 m standing start13.21 s13.29 s0.08 s · X3 M40d G01
1,000 m standing start24.25 s24.39 s0.14 s · X3 M40d G01
Top speed (electronically limited)250 km/h250 km/hSame
Power-to-weight ratio5.81 kg/hp5.81 kg/hpSame

Watch the race

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

BMWDieselX3 M40d G01
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.
StageX3 M40d G01X4 M40d G02
0–30 km/h1.25 s · tight gap1.25 s
0–50 km/h2.01 s · tight gap2.02 s
0–80 km/h3.49 s · tight gap3.53 s
0–100 km/h4.87 s · tight gap4.94 s
0–120 km/h6.61 s · tight gap6.72 s
0–160 km/h11.49 s11.71 s
0–200 km/h19.48 s19.89 s
400 m standing start13.21 s · tight gap13.29 s
1,000 m standing start24.25 s · tight gap24.39 s
Top speed limited250 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.

BMW

X3 M40d G01

5,81kg/hp0
CharacteristicValueDetail
Power326 hp6 cyl
Torque680 Nm
Weight1 895 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic
BMW

X4 M40d G02

5,81kg/hp0
CharacteristicValueDetail
Power326 hp6 cyl
Torque680 Nm
Weight1 895 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic

The start: 0 to 100 km/h

Off the line, the X3 M40d hits 100 km/h in 4.87 s versus 4.94 s for the X4 M40d. The 0.07 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the X3 M40d is doing 138 km/h against 137 km/h for the X4 M40d. The gap is 0.04 s. The gap remains stable from the start.

At 400 metres standing start, the X3 M40d crosses the line in 13.21 s versus 13.29 s. The 0.07 s gap represents roughly 4 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, nothing changes. Same ceiling, same acceleration, same trajectory - both rivals run in formation to the line. The 0.14 s gap at 1,000 metres confirms what the specs already suggested: on track, they’re interchangeable. The real contest happens elsewhere - range, comfort, charging network reliability.

What the numbers don’t tell you

Both rivals share the same electronic speed cap: the X3 M40d and the X4 M40d are governed to 250 (i.e. 155 mph - industry threshold) km/h. At that speed, standard-fit tyres approach their safety threshold - an industrial ceiling common to most electric vehicles in this segment. Neither car shows its true aerodynamic potential in this duel.

With two combustion powertrains, the difference comes down to power-to-weight ratio (5.81 kg/hp vs 5.81 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.77 seconds. The 0.07 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 and X4 M40d G02 are neck and neck (4,87 s vs 4,94 s, no significant gap).

X3 M40d G01 goes from 0 to 100 km/h in 4,87 seconds (calibrated simulation).

X3 M40d G01: 326 hp, ratio 5,81 kg/hp. X4 M40d G02: 326 hp, ratio 5,81 kg/hp.

X3 M40d G01: 250 km/h. X4 M40d G02: 250 km/h.