2015 head-to-head · Two-Seater

2015 Mazda MX-5 vs MINI Roadster

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
✓ Cheaper to run
$2,043/ year to fuel
29 MPG

The 2015 MINI Roadster is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,043 a year to fuel (29 MPG), versus $2,469 for the 2015 Mazda MX-5 (24 MPG). That's roughly $426 a year, or about $2,128 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

  • Mazda MX-5
  • MINI Roadster

Side by side

Mazda MX-5MINI Roadster
$2,469 Your annual fuel cost $2,043
24 MPG Combined efficiency 29 MPG
22 MPG City 26 MPG
27 MPG Highway 33 MPG
359 g/mi Tailpipe CO₂ (g/mi) 304 g/mi
6/10 EPA fuel economy score 7/10
6/10 EPA greenhouse gas score 7/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl Engine / motor 1.6L 4-cyl
5-speed manual Transmission 6-speed automatic
RWD Drivetrain FWD

✓ 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.

Mazda MX-5 vs MINI Roadster across model years

  • Mazda MX-5
  • MINI Roadster

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 33 2015 two-seaters, the Mazda MX-5 ranks 14th and the MINI Roadster 5th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2015 Mazda MX-5 or the 2015 MINI Roadster?

Measured by cost to drive, the MINI Roadster. The Mazda MX-5 is rated 24 MPG combined and the MINI Roadster 29 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 Mazda MX-5 vs. the MINI Roadster per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the Mazda MX-5 and $2,043 for the MINI Roadster.

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