Based on data from 19 vehicles, 925 fuel-ups and 284,571 miles of driving, the 2021 BMW M340i xDrive gets a combined Avg MPG of 25.64 with a 0.34 MPG margin of error.

Any Engine Type 3.0L L6 GAS (19) Any Body Style Sedan (3) Wagon (1)

Below you can see a distribution of the fuel-ups with 10 outliers (1.07%) removed.

Following shows the average MPG of each of the 19 vehicles in the system.

• New M340

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed Sedan
  Added Aug 2023 • 85 Fuel-ups

  Property of chip439

• 30.9 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Jan 2021 • 111 Fuel-ups

  Property of nemus

• 25.9 Avg MPG

• BMW M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2021 • 87 Fuel-ups

  Property of evvogler

• 27.6 Avg MPG

• BMW M340i

  2021 BMW M340i xDrive 3,0L L6 GAS Automatic 8 Speed Sedan
  Added Jan 2025 • 37 Fuel-ups

  Property of madmax001

• 21.1 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2021 • 56 Fuel-ups

  Property of erhall

• 24.6 Avg MPG

• My BMW M340i

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed Wagon
  Added Jun 2023 • 21 Fuel-ups

  Property of seanblee

• 25.4 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Apr 2023 • 42 Fuel-ups

  Property of ultinator

• 20.5 Avg MPG

• iWardrobe

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Sep 2023 • 28 Fuel-ups

  Property of NeoVR

• 24.7 Avg MPG

• M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Sep 2020 • 66 Fuel-ups

  Property of thehandas

• 27.5 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2024 • 25 Fuel-ups

  Property of SquishyLemonPie

• 27.1 Avg MPG

• Machine-M340i

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed Sedan
  Added May 2024 • 10 Fuel-ups

  Property of WhipGameVicious

• 22.2 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Sep 2021 • 39 Fuel-ups

  Property of Halby

• 24.8 Avg MPG

• 2021 M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Mar 2021 • 159 Fuel-ups

  Property of stunatu72

• 23.4 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Jul 2021 • 57 Fuel-ups

  Property of wbranco91

• 23.5 Avg MPG

• M340i Touring

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Oct 2020 • 74 Fuel-ups

  Property of quady4

• 27.7 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Aug 2021 • 49 Fuel-ups

  Property of DBJDavies

• 29.4 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Oct 2022 • 7 Fuel-ups

  Property of hopemelayne

• 44.7 Avg MPG

• My M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added May 2022 • 11 Fuel-ups

  Property of grahamr93

• 24.1 Avg MPG

• BMW M340i xDrive

  2021 BMW M340i xDrive 3.0L L6 GAS Automatic 8 Speed
  Added Mar 2021 • 12 Fuel-ups

  Property of noddym

• 23.2 Avg MPG