2017 head-to-head · Midsize Car

2017 Audi RS 7 vs Audi S8

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
$3,292/ year to fuel
18 MPG

AWD · 4.0L 8-cyl turbo · 8-speed automatic · 18 MPG

✓ Cheaper to run
$3,292/ year to fuel
18 MPG

AWD · 4.0L 8-cyl turbo · 8-speed automatic · 18 MPG

On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2017 Audi RS 7 (18 MPG) costs about $3,292 a year to fuel and the 2017 Audi S8 (18 MPG) about $3,292.

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 RS 7
  • Audi S8

Side by side

Audi RS 7Audi S8
$3,292 Your annual fuel cost $3,292
18 MPG Combined efficiency 18 MPG
15 MPG City 15 MPG
25 MPG Highway 24 MPG
94 cu ft Passenger volume 100 cu ft
25 cu ft Cargo volume 15 cu ft
497 g/mi Tailpipe CO₂ (g/mi) 501 g/mi
3/10 EPA fuel economy score 3/10
3/10 EPA greenhouse gas score 3/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
4.0L 8-cyl turbo Engine / motor 4.0L 8-cyl turbo
8-speed automatic Transmission 8-speed automatic
AWD Drivetrain AWD

✓ 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 RS 7 vs Audi S8 across model years

  • Audi RS 7
  • Audi S8

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 Audi S8 has more passenger space (100 vs. 94 cu ft); the Audi RS 7 has more cargo space (25 vs. 15 cu ft).

Among 67 2017 midsize cars, the Audi RS 7 ranks 63rd and the Audi S8 62nd for lowest fuel cost.

Frequently asked questions

How much does it cost to fuel the 2017 Audi RS 7 vs. the Audi S8 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $3,292 for the Audi RS 7 and $3,292 for the Audi S8.

Which has more cargo space?

The Audi RS 7, with 25 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).

More 2017 comparisons

Or compare the 2017 Audi RS 7 with anything else:

Keep exploring