2018 head-to-head · Compact Car

2018 Audi Q3 vs Infiniti QX30

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
$2,576/ year to fuel
23 MPG
✓ Cheaper to run
$2,194/ year to fuel
27 MPG

The 2018 Infiniti QX30 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,194 a year to fuel (27 MPG), versus $2,576 for the 2018 Audi Q3 (23 MPG). That's roughly $382 a year, or about $1,908 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 Q3
  • Infiniti QX30

Side by side

Audi Q3Infiniti QX30
$2,576 Your annual fuel cost $2,194
23 MPG Combined efficiency 27 MPG
20 MPG City 24 MPG
28 MPG Highway 33 MPG
84 cu ft Passenger volume 89 cu ft
17 cu ft Cargo volume 19 cu ft
387 g/mi Tailpipe CO₂ (g/mi) 324 g/mi
5/10 EPA fuel economy score 6/10
5/10 EPA greenhouse gas score 6/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
6-speed automatic 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 Q3 vs Infiniti QX30 across model years

  • Audi Q3
  • Infiniti QX30

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 Infiniti QX30 has more passenger space (89 vs. 84 cu ft); the Infiniti QX30 has more cargo space (19 vs. 17 cu ft).

Among 44 2018 compact cars, the Audi Q3 ranks 41st and the Infiniti QX30 37th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2018 Audi Q3 or the 2018 Infiniti QX30?

Measured by cost to drive, the Infiniti QX30. The Audi Q3 is rated 23 MPG combined and the Infiniti QX30 27 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2018 Audi Q3 vs. the Infiniti QX30 per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Audi Q3 and $2,194 for the Infiniti QX30.

Which has more cargo space?

The Infiniti QX30, with 19 cu ft of luggage volume versus 17 cu ft (EPA interior volume index).

Audi Q3 vs Infiniti QX30 in other years

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