2023 head-to-head · Compact Car

2023 Audi S4 vs Mercedes-Benz AMG GT

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
$2,469/ year to fuel
24 MPG

4WD · 3.0L 6-cyl turbo · 8-speed automatic · 24 MPG

✓ Cheaper to run
$3,485/ year to fuel
17 MPG

AWD · 4.0L 8-cyl turbo · 9-speed automatic · 17 MPG

The 2023 Audi S4 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 $3,485 for the 2023 Mercedes-Benz AMG GT (17 MPG). That's roughly $1,017 a year, or about $5,083 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 S4
  • Mercedes-Benz AMG GT

Side by side

Audi S4Mercedes-Benz AMG GT
$2,469 Your annual fuel cost $3,485
24 MPG Combined efficiency 17 MPG
21 MPG City 15 MPG
30 MPG Highway 21 MPG
92 cu ft Passenger volume 96 cu ft
12 cu ft Cargo volume 13 cu ft
364 g/mi Tailpipe CO₂ (g/mi) 530 g/mi
5/10 EPA fuel economy score 3/10
5/10 EPA greenhouse gas score 3/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
3.0L 6-cyl turbo Engine / motor 4.0L 8-cyl turbo
8-speed automatic Transmission 9-speed automatic
4WD 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 S4 vs Mercedes-Benz AMG GT across model years

  • Audi S4
  • Mercedes-Benz AMG GT

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 Mercedes-Benz AMG GT has more passenger space (96 vs. 92 cu ft); the Mercedes-Benz AMG GT has more cargo space (13 vs. 12 cu ft).

Among 31 2023 compact cars, the Audi S4 ranks 27th and the Mercedes-Benz AMG GT 29th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2023 Audi S4 or the 2023 Mercedes-Benz AMG GT?

Measured by cost to drive, the Audi S4. The Audi S4 is rated 24 MPG combined and the Mercedes-Benz AMG GT 17 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2023 Audi S4 vs. the Mercedes-Benz AMG GT per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the Audi S4 and $3,485 for the Mercedes-Benz AMG GT.

Which has more cargo space?

The Mercedes-Benz AMG GT, with 13 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).

Audi S4 vs Mercedes-Benz AMG GT in other years

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