2017 head-to-head · Compact Car

2017 BMW 3 Series vs Lexus IS

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
$2,116/ year to fuel
28 MPG
✓ Cheaper to run
$2,279/ year to fuel
26 MPG

The 2017 BMW 3 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,116 a year to fuel (28 MPG), versus $2,279 for the 2017 Lexus IS (26 MPG). That's roughly $163 a year, or about $814 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 3 Series
  • Lexus IS

Side by side

BMW 3 SeriesLexus IS
$2,116 Your annual fuel cost $2,279
28 MPG Combined efficiency 26 MPG
23 MPG City 22 MPG
35 MPG Highway 32 MPG
96 cu ft Passenger volume 90 cu ft
13 cu ft Cargo volume 11 cu ft
323 g/mi Tailpipe CO₂ (g/mi) 345 g/mi
6/10 EPA fuel economy score 6/10
6/10 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
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 3 Series vs Lexus IS across model years

  • BMW 3 Series
  • Lexus IS

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 BMW 3 Series has more passenger space (96 vs. 90 cu ft); the BMW 3 Series has more cargo space (13 vs. 11 cu ft).

Among 50 2017 compact cars, the BMW 3 Series ranks 35th and the Lexus IS 39th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2017 BMW 3 Series or the 2017 Lexus IS?

Measured by cost to drive, the BMW 3 Series. The BMW 3 Series is rated 28 MPG combined and the Lexus IS 26 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2017 BMW 3 Series vs. the Lexus IS per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,116 for the BMW 3 Series and $2,279 for the Lexus IS.

Which has more cargo space?

The BMW 3 Series, with 13 cu ft of luggage volume versus 11 cu ft (EPA interior volume index).

BMW 3 Series vs Lexus IS in other years

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