2021 head-to-head · Subcompact Car

2021 MINI John Cooper Works vs Roush Performance Mustang

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
$2,043/ year to fuel
29 MPG
✓ Cheaper to run
$3,950/ year to fuel
15 MPG

The 2021 MINI John Cooper Works 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 $3,950 for the 2021 Roush Performance Mustang (15 MPG). That's roughly $1,907 a year, or about $9,534 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

  • MINI John Cooper Works
  • Roush Performance Mustang

Side by side

MINI John Cooper WorksRoush Performance Mustang
$2,043 Your annual fuel cost $3,950
29 MPG Combined efficiency 15 MPG
26 MPG City 12 MPG
34 MPG Highway 19 MPG
80 cu ft Passenger volume 82 cu ft
9 cu ft Cargo volume 12 cu ft
305 g/mi Tailpipe CO₂ (g/mi) 606 g/mi
6/10 EPA fuel economy score 2/10
6/10 EPA greenhouse gas score 2/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 5.0L 8-cyl supercharged
8-speed automatic Transmission 10-speed automatic
FWD 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.

MINI John Cooper Works vs Roush Performance Mustang across model years

  • MINI John Cooper Works
  • Roush Performance Mustang

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 Roush Performance Mustang has more cargo space (12 vs. 9 cu ft).

Among 34 2021 subcompact cars, the MINI John Cooper Works ranks 9th and the Roush Performance Mustang 34th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2021 MINI John Cooper Works or the 2021 Roush Performance Mustang?

Measured by cost to drive, the MINI John Cooper Works. The MINI John Cooper Works is rated 29 MPG combined and the Roush Performance Mustang 15 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2021 MINI John Cooper Works vs. the Roush Performance Mustang per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,043 for the MINI John Cooper Works and $3,950 for the Roush Performance Mustang.

Which has more cargo space?

The Roush Performance Mustang, with 12 cu ft of luggage volume versus 9 cu ft (EPA interior volume index).

MINI John Cooper Works vs Roush Performance Mustang in other years

More 2021 comparisons

Or compare the 2021 MINI John Cooper Works with anything else:

Keep exploring