2018 head-to-head · Subcompact Car

2018 Lexus RC vs Porsche 911

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
$2,279/ year to fuel
26 MPG
✓ Cheaper to run
$2,370/ year to fuel
25 MPG

The 2018 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 $2,370 for the 2018 Porsche 911 (25 MPG). That's roughly $91 a year, or about $456 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

  • Lexus RC
  • Porsche 911

Side by side

Lexus RCPorsche 911
$2,279 Your annual fuel cost $2,370
26 MPG Combined efficiency 25 MPG
22 MPG City 22 MPG
32 MPG Highway 30 MPG
84 cu ft Passenger volume 70 cu ft
10 cu ft Cargo volume 5 cu ft
345 g/mi Tailpipe CO₂ (g/mi) 355 g/mi
5/10 EPA fuel economy score 5/10
5/10 EPA greenhouse gas score 5/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 3.0L 6-cyl turbo
8-speed automatic Transmission 7-speed dual-clutch
RWD 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.

Lexus RC vs Porsche 911 across model years

  • Lexus RC
  • Porsche 911

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 Lexus RC has more passenger space (84 vs. 70 cu ft); the Lexus RC has more cargo space (10 vs. 5 cu ft).

Among 44 2018 subcompact cars, the Lexus RC ranks 21st and the Porsche 911 22nd for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2018 Lexus RC or the 2018 Porsche 911?

Measured by cost to drive, the Lexus RC. The Lexus RC is rated 26 MPG combined and the Porsche 911 25 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2018 Lexus RC vs. the Porsche 911 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,279 for the Lexus RC and $2,370 for the Porsche 911.

Which has more cargo space?

The Lexus RC, with 10 cu ft of luggage volume versus 5 cu ft (EPA interior volume index).

Lexus RC vs Porsche 911 in other years

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