Aller au contenu principal
CaralogyCaralogy
HomeBrandsRoad TripBudgetDuelGuides
Caralogy

The car comparison platform. Physics simulation, road trips, real costs.

Navigation
All brandsCar duelRunning costsMotorwayMethodology
Simulators
Motorway simulatorRunning costsPerformance duel
Brands
VolkswagenBMWMercedesToyotaTeslaAudi
FRDEESIT
© 2026 Caralogy · All rights reserved
Home›Duel›Xpeng X9 vs BMW X4

Performance comparison

Xpeng X9 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.

XpengBEVFaster

X9

543 hp · 717 Nm · 2,630 kg · 2024

VS
BMWDiesel

X4 M40d G02

326 hp · 680 Nm · 1,895 kg · 2018

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.

X9X4 M40d G02
0–100 km/h3,88 s−1,06 s4,94 s
400 m standing start11,34 s−1,95 s13,29 s
1,000 m standing start22,14 s−2,25 s24,39 s
Top speed (electronically limited)200 km/h250 km/h−50 km/h
Power-to-weight ratio4,84 kg/hpbetter ratio5,81 kg/hp

Watch the race

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

XpengBEVX9
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. Winner in green.

PalierX9X4 M40d G02
0–30 km/h1,15 s1,25 stight gap
0–50 km/h1,92 s2,02 stight gap
0–80 km/h3,09 s3,53 s
0–100 km/h3,88 s4,94 s
0–120 km/h4,68 s6,72 s
0–160 km/h6,72 s11,71 s
0–200 km/h9,78 s19,89 s
400 m standing start11,34 s13,29 s
1,000 m standing start22,14 s24,39 s
Top speed limited200 km/h250 km/h

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

Xpeng

X9

4,84kg/hpratio better by 0,97 kg/hp
CharacteristicValueDetail
Power543 hpDual Permanent Magnet Synchronous Motor AWD MPV
Torque717 Nm
Weight2 630 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxSingle-speed fixed gear
BMW

X4 M40d G02

5,81kg/hpcompensated by −735 kg
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 X9 hits 100 km/h in 3.88 s versus 4.94 s for the Bmw X4 M40d. The instant torque of 717 Nm from the electric motor makes the difference. At this point, the X9 leads by 1.06 s and sits roughly 5 m ahead.

From 100 km/h to 400 metres

At 200 metres, the X9 is doing 173 km/h against 137 km/h for the Bmw X4 M40d. The gap is 1.02 s. The gap remains stable from the start.

At 400 metres standing start, the X9 crosses the line in 11.34 s versus 13.29 s. The 1.95 s gap represents roughly 89 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the X9 continues to build its lead. At 600 metres, it runs at 200 km/h versus 190 km/h. At 1,000 metres, the X9 finishes in 22.13 s versus 24.38 s, with a 2.25 s lead. Despite a higher top speed (250 (i.e. 155 mph - industry threshold) km/h), the Bmw X4 M40d never recovers its launch deficit.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the X9 is capped at 200 km/h, the Bmw X4 M40d at 250 (i.e. 155 mph - industry threshold) 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.

Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.77 seconds. The 1.06 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Autres duels qui pourraient vous intéresser

XpengVSMercedes

X9 vs V 300 d 4MATIC

BmwVSAudi

X4 M40d vs Q5 Sportback

XpengVSMercedes

X9 vs V 300 d 4MATIC (long)

PorscheVSBmw

Macan S vs X4 M40d

Frequently asked questions

Over 0–100 km/h, X9 wins (3,88 s vs 4,94 s).

X9 goes from 0 to 100 km/h in 3,88 seconds (calibrated simulation).

X9: 543 hp, ratio 4,84 kg/hp. X4 M40d G02: 326 hp, ratio 5,81 kg/hp.

X9: 200 km/h. X4 M40d G02: 250 km/h.