2015 head-to-head · Midsize Car

2015 BMW 5 Series vs Lexus GS

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
$2,279/ year to fuel
26 MPG
✓ Cheaper to run
$2,576/ year to fuel
23 MPG

The 2015 BMW 5 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,279 a year to fuel (26 MPG), versus $2,576 for the 2015 Lexus GS (23 MPG). That's roughly $297 a year, or about $1,486 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

  • BMW 5 Series
  • Lexus GS

Side by side

BMW 5 SeriesLexus GS
$2,279 Your annual fuel cost $2,576
26 MPG Combined efficiency 23 MPG
23 MPG City 19 MPG
33 MPG Highway 29 MPG
102 cu ft Passenger volume 99 cu ft
14 cu ft Cargo volume 14 cu ft
338 g/mi Tailpipe CO₂ (g/mi) 392 g/mi
7/10 EPA fuel economy score 5/10
7/10 EPA greenhouse gas score 5/10
Gas Powertrain Gas
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 3.5L 6-cyl
8-speed automatic Transmission 8-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.

BMW 5 Series vs Lexus GS across model years

  • BMW 5 Series
  • Lexus GS

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 69 2015 midsize cars, the BMW 5 Series ranks 47th and the Lexus GS 51st for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2015 BMW 5 Series or the 2015 Lexus GS?

Measured by cost to drive, the BMW 5 Series. The BMW 5 Series is rated 26 MPG combined and the Lexus GS 23 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 BMW 5 Series vs. the Lexus GS per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,279 for the BMW 5 Series and $2,576 for the Lexus GS.

BMW 5 Series vs Lexus GS in other years

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