Data shown is approximate and based on publicly available specifications and real-world estimates. Actual performance varies with driving conditions, temperature, state of charge, and charger hardware. Always check your vehicle's manual for official specifications. EVcourse is not affiliated with any vehicle manufacturer.
Quick verdict
The XPENG G9 charges faster with a peak of 300 kW DC, while the XPENG G9 is more efficient at 192 Wh/km. The XPENG G9 offers more WLTP rated range at 570 km.
Side-by-Side Specs
| Spec | BMW iX | XPENG G9 |
|---|---|---|
| Battery (approx.) | ~71 kWh | ~92.2 kWh |
| WLTP range (rated) | ~425 km | ~570 km |
| Efficiency (approx.) | ~197 Wh/km | ~192 Wh/km |
| Max DC charging | up to 148 kW | up to 300 kW |
| 10-80% charge time (approx.) | ~34 min | ~20 min |
| Max AC charging | up to 11 kW | up to 11 kW |
| DC connector | CCS2 | CCS2 |
Charging Speed
The XPENG G9 has a peak DC charging speed of 300 kW, which is roughly 103% faster than the BMW iX at 148 kW. In practice, peak speed only tells part of the story. The charging curve, battery temperature, and state of charge all affect how quickly your car actually charges.
For the 10-80% charge (the most common DC fast charging scenario), the XPENG G9 finishes in about 20 minutes, which is 14 minutes quicker than the BMW iX at 34 minutes. On a road trip, that difference adds up over multiple stops.
Range and Efficiency
The XPENG G9 has a WLTP rated range of approximately 570 km, which is roughly 145 km more than the BMW iX at approximately 425 km. WLTP is a standardized lab test. Expect your actual range to be lower, varying with speed, weather, terrain, and driving style.
Efficiency matters more than battery size for daily driving costs. The XPENG G9 consumes 192 Wh/km, compared to 197 Wh/km for the BMW iX. That means the XPENG G9 uses less energy per kilometer, which translates to lower charging costs and fewer charging stops on longer drives.
A more efficient car does not always mean more range. Battery size plays a role too. The XPENG G9 has approximately 92.2 kWh of useable battery , while the BMW iX has approximately 71 kWh.
Which One Should You Choose?
If fast charging speed is your priority, the XPENG G9 wins on both peak power (up to 300 kW) and time at the plug (approximately 20 minutes from 10-80%). For long road trips with multiple charging stops, that faster turnaround makes a real difference.
Both cars support 11 kW AC charging, so home and workplace charging speeds will be similar.
If you mostly charge at home or at work and care more about daily driving costs, the XPENG G9 is the more efficient choice at 192 Wh/km. Lower consumption means lower electricity bills over time.
For maximum range between charges, the XPENG G9 has a WLTP rated range of approximately 570 km, which is roughly 145 km more. Both are capable EVs. The best choice depends on how you charge and how far you drive.
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From Finn, engineer: Charging specs alone do not tell the full story. Real-world charging speed depends on battery temperature, state of charge, and the charger itself. These comparisons use manufacturer-published data. Approximate values only.
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