2018 · Subcompact Car · Gas

2018 BMW 6 Series MPG & fuel economy

The 2018 BMW 6 Series is a subcompact car offered in 5 EPA-rated configurations. The most efficient version returns 23 MPG combined (20 city / 29 highway) on premium gasoline. Across the lineup, combined ratings range from 19 to 23 MPG. That's down 1 MPG from the 2017 model. Among 44 subcompact cars rated for 2018, it ranks 28th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,576 a year to fuel.

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Combined 23 MPG 20 MPG city · 29 MPG hwy
Driving range — not published for this model
Your fuel cost $2,576 15,000 mi/yr · $17.17 per 100 mi
Class rank, 2018 #28 of 44 Subcompact Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Fuel average

The 2018 BMW 6 Series's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 12.3 km/L on the highway.

MPGkm/LL/100 km
City208.511.8
Highway2912.38.1
Combined239.810.2

How it ranks among 2018 Subcompact Cars

Full class ranking →
  1. 1BMW i3118 MPGe $772
  2. 2Fiat 500e112 MPGe $810
  3. 3BMW i3 Plug-in Hybrid109 MPGe + 35 MPG $933
  4. 4Chevrolet Spark33 MPG $1,409
  5. 5Ford Fiesta31 MPG $1,500
  6. 28BMW 6 Series23 MPG $2,576
  7. 44Toyota Mirai67 MPGe $8,060
2018 6 SeriesOther subcompact carsClass median: $2,370/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

6 Series MPG across model years

Full history →

5 EPA-rated configurations

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
RWD · 3.0L 6-cyl turbo · 8-speed automatic
640i Convertible		 Gas 20 MPG 29 MPG 23 MPG — $2,576
AWD · 3.0L 6-cyl turbo · 8-speed automatic
640i xDrive Gran Turismo		 Gas 20 MPG 28 MPG 23 MPG — $2,576
AWD · 3.0L 6-cyl turbo · 8-speed automatic
640i xDrive Convertible		 Gas 19 MPG 28 MPG 22 MPG — $2,693
RWD · 4.4L 8-cyl turbo · 8-speed automatic
650i Convertible		 Gas 17 MPG 25 MPG 20 MPG — $2,962
AWD · 4.4L 8-cyl turbo · 8-speed automatic
650i xDrive Convertible		 Gas 16 MPG 25 MPG 19 MPG — $3,118

Specs (most efficient configuration)

Fuel
Premium gasoline
Engine / motor
3.0L 6-cyl turbo
Transmission
8-speed automatic
Drivetrain
RWD
Passenger volume
88 cu ft
Cargo volume
11 cu ft
Tailpipe CO₂
378 g/mi
EPA fuel economy score
5/10
EPA greenhouse gas score
5/10

2018 BMW 6 Series vs. rivals

vs Audi RS 3 22 MPG · $2,693/yr 6 Series saves $117/yr vs Audi S3 25 MPG · $2,370/yr S3 saves $206/yr vs Audi S5 24 MPG · $2,469/yr S5 saves $107/yr vs Infiniti Q60 25 MPG · $2,370/yr Q60 saves $206/yr vs Audi RS 5 21 MPG · $2,821/yr 6 Series saves $245/yr vs Mercedes-Benz C-Class 27 MPG · $2,194/yr C-Class saves $382/yr vs Lexus LC 19 MPG · $3,118/yr 6 Series saves $542/yr vs Audi TT RS 22 MPG · $2,693/yr 6 Series saves $117/yr vs Audi TTS Coupe 25 MPG · $2,370/yr TTS Coupe saves $206/yr vs Maserati GranTurismo 16 MPG · $3,703/yr 6 Series saves $1,127/yr

Compare the 2018 6 Series

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Frequently asked questions

What is the gas mileage of the 2018 BMW 6 Series?

Up to 23 MPG combined (20 city / 29 highway); ratings range from 19 to 23 MPG depending on configuration.

What fuel does the 2018 BMW 6 Series use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2018 BMW 6 Series?

The 2018 BMW 6 Series's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 12.3 km/L on the highway.

How much does it cost to fuel the 2018 BMW 6 Series per year?

About $2,576 at 15,000 miles a year with $3.95/gal premium gas, or $17.17 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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