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AG9vsBGLCBEV
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  • PerformancePerformance0-100, top speed
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  • SpecsG9 · GLC

Xpeng G9 vs Mercedes GLC 400 4MATIC X254: 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 · 2024 vs 2025 · Methodology
XpengBEV

G9

543 hp · 717 Nm · 2,355 kg · 2024

VS
MercedesBEV

GLC 400 4MATIC X254

489 hp · 800 Nm · 2,535 kg · 2025

Donnée constructeur en cours de validation pour ce profil

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.

Xpeng

G9

4,34kg/hpratio better by 0,85 kg/hp
CharacteristicValueDetail
Power543 hpDual Permanent Magnet Synchronous Motor AWD
Torque717 Nm
Weight2 355 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxSingle-speed fixed gear
Mercedes

GLC 400 4MATIC X254

5,18kg/hpcompensated by −180 kg
CharacteristicValueDetail
Power489 hpPending
Torque800 Nm
Weight2 535 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxUnknown

Compare with other alternatives

Swap one of the two models to explore an equivalent duel in the same segment.

Instead of G9
Xpeng G6

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MercedesVSHyundai

GLC 400 4MATIC vs IONIQ 5 N

AudiVSMercedes

SQ6 Sportback e-tron vs GLC 400 4MATIC

Frequently asked questions

See the simulation above.

Data not available.

G9: 543 hp, ratio 4,34 kg/hp. GLC 400 4MATIC X254: 489 hp, ratio 5,18 kg/hp.

G9: 200 km/h. GLC 400 4MATIC X254: 210 km/h.