2019 head-to-head · Midsize Car

2019 Infiniti Q70 vs Lexus LS

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
$2,821/ year to fuel
21 MPG
✓ Cheaper to run
$2,576/ year to fuel
23 MPG

The 2019 Lexus LS is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,576 a year to fuel (23 MPG), versus $2,821 for the 2019 Infiniti Q70 (21 MPG). That's roughly $245 a year, or about $1,227 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

  • Infiniti Q70
  • Lexus LS

Side by side

Infiniti Q70Lexus LS
$2,821 Your annual fuel cost $2,576
21 MPG Combined efficiency 23 MPG
18 MPG City 19 MPG
25 MPG Highway 30 MPG
104 cu ft Passenger volume 99 cu ft
15 cu ft Cargo volume 13 cu ft
433 g/mi Tailpipe CO₂ (g/mi) 388 g/mi
4/10 EPA fuel economy score 5/10
4/10 EPA greenhouse gas score 5/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
3.7L 6-cyl Engine / motor 3.4L 6-cyl turbo
7-speed automatic Transmission 10-speed automatic
RWD 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.

Infiniti Q70 vs Lexus LS across model years

  • Infiniti Q70
  • Lexus LS

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 Q70 has more passenger space (104 vs. 99 cu ft); the Infiniti Q70 has more cargo space (15 vs. 13 cu ft).

Among 68 2019 midsize cars, the Infiniti Q70 ranks 64th and the Lexus LS 62nd for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2019 Infiniti Q70 or the 2019 Lexus LS?

Measured by cost to drive, the Lexus LS. The Infiniti Q70 is rated 21 MPG combined and the Lexus LS 23 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2019 Infiniti Q70 vs. the Lexus LS per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,821 for the Infiniti Q70 and $2,576 for the Lexus LS.

Which has more cargo space?

The Infiniti Q70, with 15 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

Infiniti Q70 vs Lexus LS in other years

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