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AiXvsBG9BEV
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  • SpecsiX · G9

BMW iX xDrive40 vs Xpeng G9: 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 2022 · Methodology
BMWBEVFaster

iX xDrive40

326 hp · 630 Nm · 2,440 kg · 2021

VS
XpengBEV

G9

308 hp · 430 Nm · 2,210 kg · 2022

Result · 0–100 km/h

ABMW iX xDrive40

6.04 s

Gap2.47 sin favour of iX xDrive40
BXpeng G9

8.51 s

Summary · Caralogy simulation
MeasureiX xDrive40G9Gap
0–100 km/h6.04 s8.51 s2.47 s · iX xDrive40
400 m standing start14.37 s16.32 s1.95 s · iX xDrive40
1,000 m standing start26.37 s28.71 s2.34 s · iX xDrive40
Top speed (electronically limited)200 km/h200 km/hSame
Power-to-weight ratio7.48 kg/hp7.18 kg/hpbetter ratio · G9

Watch the race

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

BMWBEViX xDrive40
Speed
0km/h
Timer
0,00s
Distance
0m
XpengBEVG9
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.
StageiX xDrive40G9
0–30 km/h1.42 s2.41 s
0–50 km/h2.37 s4.03 s
0–80 km/h4.25 s6.49 s
0–100 km/h6.04 s8.51 s
0–120 km/h8.34 s11.09 s
0–160 km/h15.21 s18.51 s
0–200 km/h26.44 s31.05 s
400 m standing start14.37 s16.32 s
1,000 m standing start26.37 s28.71 s
Top speed200 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.

BMW

iX xDrive40

7,48kg/hpcompensated by −230 kg
CharacteristicValueDetail
Power326 hpPending
Torque630 Nm
Weight2 440 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxSingle-speed reduction gear
Xpeng

G9

7,18kg/hpratio better by 0,31 kg/hp
CharacteristicValueDetail
Power308 hpPermanent Magnet Synchronous Motor
Torque430 Nm
Weight2 210 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxSingle-speed fixed gear

The start: 0 to 100 km/h

Off the line, the iX xDrive40 hits 100 km/h in 6.04 s versus 8.51 s for the G9. At this point, the iX xDrive40 leads by 2.47 s and sits roughly 33 m ahead.

From 100 km/h to 400 metres

At 200 metres, the iX xDrive40 is doing 127 km/h against 120 km/h for the G9. The gap is 1.70 s. The challenger starts to claw back ground.

At 400 metres standing start, the iX xDrive40 crosses the line in 14.36 s versus 16.32 s. The 1.95 s gap represents roughly 79 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the iX xDrive40 continues to build its lead. At 600 metres, it runs at 175 km/h versus 169 km/h. At 1,000 metres, the iX xDrive40 finishes in 26.37 s versus 28.71 s, with a 2.34 s lead. Both vehicles have similar top speeds (200 vs 200 km/h), preventing any comeback.

What the numbers don’t tell you

The iX xDrive40 features all-wheel drive (AWD) against the G9’s RWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.

Both rivals share the same electronic speed cap: the iX xDrive40 and the G9 are governed to 200 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 electric powertrains, the difference comes down to power-to-weight ratio (7.48 kg/hp vs 7.18 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.63 seconds. The 2.47 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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Model X 100D vs iX xDrive40

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iX xDrive50 vs G9

TeslaVSBMW

Model X 90D vs iX xDrive40

TeslaVSXpeng

Model X 100D vs G9

Frequently asked questions

Over 0–100 km/h, iX xDrive40 wins (6,04 s vs 8,51 s).

iX xDrive40 goes from 0 to 100 km/h in 6,04 seconds (calibrated simulation).

iX xDrive40: 326 hp, ratio 7,48 kg/hp. G9: 308 hp, ratio 7,18 kg/hp.

iX xDrive40: 200 km/h. G9: 200 km/h.