2017 head-to-head · Subcompact Car

2017 Audi S5 vs Lexus RC

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
$2,821/ year to fuel
21 MPG
✓ Cheaper to run
$2,279/ year to fuel
26 MPG

The 2017 Lexus RC is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,279 a year to fuel (26 MPG), versus $2,821 for the 2017 Audi S5 (21 MPG). That's roughly $543 a year, or about $2,713 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 S5
  • Lexus RC

Side by side

Audi S5Lexus RC
$2,821 Your annual fuel cost $2,279
21 MPG Combined efficiency 26 MPG
18 MPG City 22 MPG
28 MPG Highway 32 MPG
84 cu ft Passenger volume 84 cu ft
13 cu ft Cargo volume 10 cu ft
413 g/mi Tailpipe CO₂ (g/mi) 345 g/mi
4/10 EPA fuel economy score 6/10
4/10 EPA greenhouse gas score 6/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
3.0L 6-cyl supercharged Engine / motor 2.0L 4-cyl turbo
7-speed dual-clutch 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 S5 vs Lexus RC across model years

  • Audi S5
  • Lexus RC

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 S5 has more cargo space (13 vs. 10 cu ft).

Among 43 2017 subcompact cars, the Audi S5 ranks 30th and the Lexus RC 21st for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2017 Audi S5 or the 2017 Lexus RC?

Measured by cost to drive, the Lexus RC. The Audi S5 is rated 21 MPG combined and the Lexus RC 26 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2017 Audi S5 vs. the Lexus RC per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Audi S5 and $2,279 for the Lexus RC.

Which has more cargo space?

The Audi S5, with 13 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).

Audi S5 vs Lexus RC in other years

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