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Tesla Model X Performance vs BMW iX xDrive40: 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 · 2020 vs 2021 · Methodology
TeslaBEVFaster

Model X Performance

778 hp · 1139 Nm · 2,459 kg · 2020

VS
BMWBEV

iX xDrive40

326 hp · 630 Nm · 2,440 kg · 2021

Result · 0–100 km/h

ATesla Model X Performance

3.05 s

Gap2.99 sin favour of Model X Performance
BBMW iX xDrive40

6.04 s

Summary · Caralogy simulation
MeasureModel X PerformanceiX xDrive40Gap
0–100 km/h3.05 s6.04 s2.99 s · Model X Performance
400 m standing start10.92 s14.37 s3.45 s · Model X Performance
1,000 m standing start19.92 s26.37 s6.45 s · Model X Performance
Top speed (electronically limited)262 km/h200 km/h62 km/h · Model X Performance
Power-to-weight ratio3.16 kg/hp7.48 kg/hpbetter ratio · Model X Performance

Watch the race

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

TeslaBEVModel X Performance
Speed
0km/h
Timer
0,00s
Distance
0m
BMWBEViX xDrive40
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.
StageModel X PerformanceiX xDrive40
0–30 km/h0.89 s1.42 s
0–50 km/h1.48 s2.37 s
0–80 km/h2.37 s4.25 s
0–100 km/h3.05 s6.04 s
0–120 km/h3.91 s8.34 s
0–160 km/h6.45 s15.21 s
0–200 km/h10.08 s26.44 s
400 m standing start10.92 s14.37 s
1,000 m standing start19.92 s26.37 s
Top speed262 km/h200 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.

Tesla

Model X Performance

3,16kg/hpratio better by 4,32 kg/hp
CharacteristicValueDetail
Power778 hpDual Permanent Magnet Synchronous Motor
Torque1139 Nm
Weight2 459 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxSingle-speed fixed gear
BMW

iX xDrive40

7,48kg/hp
CharacteristicValueDetail
Power326 hpPending
Torque630 Nm
Weight2 440 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxSingle-speed reduction gear

The start: 0 to 100 km/h

Off the line, the Model X Performance hits 100 km/h in 3.05 s versus 6.04 s for the iX xDrive40. At this point, the Model X Performance leads by 2.99 s and sits roughly 16 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Model X Performance is doing 168 km/h against 127 km/h for the iX xDrive40. The gap is 2.20 s. The challenger starts to claw back ground.

At 400 metres standing start, the Model X Performance crosses the line in 10.92 s versus 14.36 s. The 3.45 s gap represents roughly 141 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Model X Performance continues to build its lead. At 600 metres, it runs at 233 km/h versus 175 km/h. At 1,000 metres, the Model X Performance finishes in 19.92 s versus 26.37 s, with a 6.45 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the Model X Performance is capped at 262 km/h, the iX xDrive40 at 200 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 electric powertrains, the difference comes down to power-to-weight ratio (3.16 kg/hp vs 7.48 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.74 seconds. The 2.99 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 Model X Performance
Tesla Model X Long RangeTesla Model X P100DTesla Model X Long Range

Other duels you might be interested in

TeslaVSBMW

Model X Performance vs iX xDrive50

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Model X 100D vs iX xDrive40

TeslaVSPorsche

Model X Performance vs Cayenne Turbo S E-Hybrid Coupe

TeslaVSBMW

Model X 90D vs iX xDrive40

Frequently asked questions

Over 0–100 km/h, Model X Performance wins (3,05 s vs 6,04 s).

Model X Performance goes from 0 to 100 km/h in 3,05 seconds (calibrated simulation).

Model X Performance: 778 hp, ratio 3,16 kg/hp. iX xDrive40: 326 hp, ratio 7,48 kg/hp.

Model X Performance: 262 km/h. iX xDrive40: 200 km/h.