Fuel economy & running costsGasoline
#666 of 2,720 · BMW cars
2021 BMWX3 M Competition
Small Sport Utility Vehicle 4WD · All-Wheel Drive · 3.0 L 6-cyl turbo
16MPGcombined
14city
19highway
A year of fuel$5,150
CO₂ from the tailpipe546 g/mi
Figures from the EPA label (fueleconomy.gov), the same as on the car's window sticker.
Against the 2,720 BMW cars
Bars are scaled to the best in the list; the mark shows the list average. Lower is better for fuel cost; higher is better for the rest. All figures are the EPA's.
Summary
2021 BMW X3 M Competition by BMW. The figures below are from US EPA fueleconomy.gov, with the page each one came from.
Details
- Model year
- 2021fueleconomy.gov · 3 Oct 2026
Efficiency
- Combined MPG
- 16fueleconomy.gov · 3 Oct 2026
- City MPG
- 14fueleconomy.gov · 3 Oct 2026
- Highway MPG
- 19fueleconomy.gov · 3 Oct 2026
Running cost
- Annual fuel cost
- $5,150fueleconomy.gov · 3 Oct 2026
- CO₂ (tailpipe)
- 546 g/mifueleconomy.gov · 3 Oct 2026
Car
- Body
- SUVfueleconomy.gov · 3 Oct 2026
- EPA class
- Small Sport Utility Vehicle 4WDfueleconomy.gov · 3 Oct 2026
- Drive
- All-Wheel Drivefueleconomy.gov · 3 Oct 2026
Powertrain
- Engine
- 3.0 L 6-cyl turbofueleconomy.gov · 3 Oct 2026
- Transmission
- Automatic (S8)fueleconomy.gov · 3 Oct 2026
- Fuel
- Gasolinefueleconomy.gov · 3 Oct 2026
More BMW cars
See the list
#1 2027 · BMW 228 Gran Coupe 31Combined MPG $2,650Fuel / year #2 2027 · BMW 228 xDrive Gran Coupe 30Combined MPG $2,750Fuel / year 
#3 2027 · BMW 430i Convertible 30Combined MPG $2,750Fuel / year #4 2027 · BMW 430i Coupe 31Combined MPG $2,650Fuel / year #5 2027 · BMW 430i Gran Coupe 30Combined MPG $2,750Fuel / year #6 2027 · BMW 430i xDrive Convertible 28Combined MPG $2,950Fuel / year Listed on CarCody
- BMW Cars: Every Model and Year With MPG2720 listed
Sources
- fueleconomy.gov/feg/noframes/42598.shtml· checked 3 Oct 2026