2021 head-to-head · Large Car
2021 Audi A8 Plug-in Hybrid vs BMW 7 Series
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 53 MPGe + 23 MPG
The 2021 Audi A8 Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $2,170 a year to fuel (53 MPGe + 23 MPG), versus $2,370 for the 2021 BMW 7 Series (25 MPG). That's roughly $200 a year, or about $1,000 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Audi A8 Plug-in Hybrid
- BMW 7 Series
Side by side
| Audi A8 Plug-in Hybrid | BMW 7 Series | |
|---|---|---|
| $2,170 | Your annual fuel cost | $2,370 |
| 53 MPGe + 23 MPG | Combined efficiency | 25 MPG |
| 49 MPGe / 21 MPG | City | 22 MPG |
| 60 MPGe / 26 MPG | Highway | 29 MPG |
| 63 kWh | Electricity use (kWh/100 mi) | — |
| 420 mi | Driving range | — |
| 18 mi | All-electric range | — |
| 111 cu ft | Passenger volume | 114 cu ft |
| 13 cu ft | Cargo volume | 14 cu ft |
| 213 g/mi | Tailpipe CO₂ (g/mi) | 360 g/mi |
| 7/10 | EPA fuel economy score | 5/10 |
| 8/10 | EPA greenhouse gas score | 5/10 |
| 2.4 hrs | Charge time at 240V | — |
| Plug-in hybrid | Powertrain | Gas |
| Premium gas + electricity | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 8-speed automatic |
| AWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Audi A8 Plug-in Hybrid vs BMW 7 Series across model years
- Audi A8 Plug-in Hybrid
- BMW 7 Series
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the BMW 7 Series has more cargo space (14 vs. 13 cu ft).
Among 27 2021 large cars, the Audi A8 Plug-in Hybrid ranks 13th and the BMW 7 Series 18th for lowest fuel cost.
The powertrains differ: the Audi A8 Plug-in Hybrid is a plug-in hybrid, while the BMW 7 Series is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2021 Audi A8 Plug-in Hybrid or the 2021 BMW 7 Series?
Measured by cost to drive, the Audi A8 Plug-in Hybrid. The Audi A8 Plug-in Hybrid is rated 53 MPGe + 23 MPG combined and the BMW 7 Series 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Audi A8 Plug-in Hybrid vs. the BMW 7 Series per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $2,170 for the Audi A8 Plug-in Hybrid and $2,370 for the BMW 7 Series.
Which has more cargo space?
The BMW 7 Series, with 14 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
Audi A8 Plug-in Hybrid vs BMW 7 Series in other years
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