2020 head-to-head · Two-Seater

2020 Audi R8 vs Porsche Boxster

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
$3,703/ year to fuel
16 MPG

AWD · 5.2L 10-cyl · 7-speed dual-clutch · 16 MPG

✓ Cheaper to run
$2,469/ year to fuel
24 MPG

The 2020 Porsche Boxster 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 $3,703 for the 2020 Audi R8 (16 MPG). That's roughly $1,234 a year, or about $6,172 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 R8
  • Porsche Boxster

Side by side

Audi R8Porsche Boxster
$3,703 Your annual fuel cost $2,469
16 MPG Combined efficiency 24 MPG
13 MPG City 21 MPG
20 MPG Highway 27 MPG
556 g/mi Tailpipe CO₂ (g/mi) 375 g/mi
2/10 EPA fuel economy score 5/10
2/10 EPA greenhouse gas score 5/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
5.2L 10-cyl Engine / motor 2.0L 4-cyl turbo
7-speed dual-clutch Transmission 7-speed dual-clutch
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 R8 vs Porsche Boxster across model years

  • Audi R8
  • Porsche Boxster

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

Among 39 2020 two-seaters, the Audi R8 ranks 29th and the Porsche Boxster 9th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2020 Audi R8 or the 2020 Porsche Boxster?

Measured by cost to drive, the Porsche Boxster. The Audi R8 is rated 16 MPG combined and the Porsche Boxster 24 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2020 Audi R8 vs. the Porsche Boxster per year?

At 15,000 miles a year with $3.95/gal premium gas, about $3,703 for the Audi R8 and $2,469 for the Porsche Boxster.

Audi R8 vs Porsche Boxster in other years

More 2020 comparisons

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