2015 head-to-head · Midsize & Large SUV

2015 Audi Q7 vs Lexus GX

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
$3,292/ year to fuel
18 MPG

AWD · 3.0L 6-cyl supercharged · 8-speed automatic · 18 MPG

✓ Cheaper to run
$3,485/ year to fuel
17 MPG

4WD · 4.6L 8-cyl · 6-speed automatic · 17 MPG

The 2015 Audi Q7 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,292 a year to fuel (18 MPG), versus $3,485 for the 2015 Lexus GX (17 MPG). That's roughly $194 a year, or about $968 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 Q7
  • Lexus GX

Side by side

Audi Q7Lexus GX
$3,292 Your annual fuel cost $3,485
18 MPG Combined efficiency 17 MPG
16 MPG City 15 MPG
22 MPG Highway 20 MPG
497 g/mi Tailpipe CO₂ (g/mi) 517 g/mi
4/10 EPA fuel economy score 4/10
4/10 EPA greenhouse gas score 4/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
3.0L 6-cyl supercharged Engine / motor 4.6L 8-cyl
8-speed automatic Transmission 6-speed automatic
AWD Drivetrain 4WD

✓ 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 Q7 vs Lexus GX across model years

  • Audi Q7
  • Lexus GX

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 45 2015 midsize & large SUVs, the Audi Q7 ranks 40th and the Lexus GX 41st for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2015 Audi Q7 or the 2015 Lexus GX?

Measured by cost to drive, the Audi Q7. The Audi Q7 is rated 18 MPG combined and the Lexus GX 17 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 Audi Q7 vs. the Lexus GX per year?

At 15,000 miles a year with $3.95/gal premium gas, about $3,292 for the Audi Q7 and $3,485 for the Lexus GX.

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