2018 head-to-head · Large Car

2018 Audi A8 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.

Swap sides
✓ Cheaper to run
$2,693/ year to fuel
22 MPG
✓ Cheaper to run
$2,469/ year to fuel
24 MPG

The 2018 BMW 7 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,469 a year to fuel (24 MPG), versus $2,693 for the 2018 Audi A8 (22 MPG). That's roughly $224 a year, or about $1,122 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
  • BMW 7 Series

Side by side

Audi A8BMW 7 Series
$2,693 Your annual fuel cost $2,469
22 MPG Combined efficiency 24 MPG
19 MPG City 21 MPG
29 MPG Highway 29 MPG
107 cu ft Passenger volume 114 cu ft
15 cu ft Cargo volume 14 cu ft
397 g/mi Tailpipe CO₂ (g/mi) 372 g/mi
4/10 EPA fuel economy score 5/10
4/10 EPA greenhouse gas score 5/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
3.0L 6-cyl supercharged 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 vs BMW 7 Series across model years

  • Audi A8
  • 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 passenger space (114 vs. 107 cu ft); the Audi A8 has more cargo space (15 vs. 14 cu ft).

Among 31 2018 large cars, the Audi A8 ranks 26th and the BMW 7 Series 23rd for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2018 Audi A8 or the 2018 BMW 7 Series?

Measured by cost to drive, the BMW 7 Series. The Audi A8 is rated 22 MPG combined and the BMW 7 Series 24 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2018 Audi A8 vs. the BMW 7 Series per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,693 for the Audi A8 and $2,469 for the BMW 7 Series.

Which has more cargo space?

The Audi A8, with 15 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).

Audi A8 vs BMW 7 Series in other years

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