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 Audi A6 Sportback e-tron charges faster with a peak of 270 kW DC, while the BMW i4 is more efficient at 157 Wh/km. The Audi A6 Sportback e-tron offers more WLTP rated range at 720 km.
Side-by-Side Specs
| Spec | Audi A6 Sportback e-tron | BMW i4 |
|---|---|---|
| Battery (approx.) | ~95 kWh | ~80.7 kWh |
| WLTP range (rated) | ~720 km | ~589 km |
| Efficiency (approx.) | ~158 Wh/km | ~157 Wh/km |
| Max DC charging | up to 270 kW | up to 207 kW |
| 10-80% charge time (approx.) | ~21 min | ~32 min |
| Max AC charging | up to 11 kW | up to 11 kW |
| DC connector | CCS2 | CCS2 |
Charging Speed
The Audi A6 Sportback e-tron has a peak DC charging speed of 270 kW, which is roughly 30% faster than the BMW i4 at 207 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 Audi A6 Sportback e-tron finishes in about 21 minutes, which is 11 minutes quicker than the BMW i4 at 32 minutes. On a road trip, that difference adds up over multiple stops.
Range and Efficiency
The Audi A6 Sportback e-tron has a WLTP rated range of approximately 720 km, which is roughly 131 km more than the BMW i4 at approximately 589 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 BMW i4 consumes 157 Wh/km, compared to 158 Wh/km for the Audi A6 Sportback e-tron. That means the BMW i4 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 Audi A6 Sportback e-tron has approximately 95 kWh of useable battery , while the BMW i4 has approximately 80.7 kWh.
Which One Should You Choose?
If fast charging speed is your priority, the Audi A6 Sportback e-tron wins on both peak power (up to 270 kW) and time at the plug (approximately 21 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 BMW i4 is the more efficient choice at 157 Wh/km. Lower consumption means lower electricity bills over time.
For maximum range between charges, the Audi A6 Sportback e-tron has a WLTP rated range of approximately 720 km, which is roughly 131 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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