2018 BMW 6 Series Specs, MPG & Trims
EPA fuel-economy data and specifications for the 2018 BMW 6 Series (19–23 MPG combined) across 10 listed configurations.
Overview
- Body class
- Subcompact Cars, Compact Cars, Large Cars
- Drive
- Rear-Wheel Drive, All-Wheel Drive
- Engine
- 6-cyl, 3.0 L; 8-cyl, 4.4 L
- Fuel type
- Premium Gasoline
- Combined MPG
- 19–23 MPG
- Annual fuel cost
- $3,550–$4,350
- Configurations
- 10
MPG & fuel economy
City, highway and combined values below are EPA estimates. Where a powertrain has several configurations, the table shows the lowest–highest reported value. Electric configurations use MPGe.
| Powertrain | City | Highway | Combined | Annual fuel cost | CO2 |
|---|---|---|---|---|---|
| 6-cyl 3.0 L · Premium Gasoline · All-Wheel Drive | 19–20 | 28 | 22–23 | $3,550–$3,750 | 388–396 g/mi |
| 8-cyl 4.4 L · Premium Gasoline · All-Wheel Drive | 16 | 25 | 19 | $4,350 | 463 g/mi |
| 6-cyl 3.0 L · Premium Gasoline · Rear-Wheel Drive | 20 | 29 | 23 | $3,550 | 378 g/mi |
| 8-cyl 4.4 L · Premium Gasoline · Rear-Wheel Drive | 17 | 25 | 20 | $4,100 | 449 g/mi |
Configurations & engine comparison
Each row is one configuration/engine combination reported by the EPA for this model year. Missing EPA values are shown as —.
| Configuration / engine | Drive | Transmission | Cyl. | Displ. (L) | Fuel type | City | Hwy | Comb. | Annual cost |
|---|---|---|---|---|---|---|---|---|---|
| 640i Convertible | Rear-Wheel Drive | Automatic (S8) | 6 | 3.0 | Premium Gasoline | 20 | 29 | 23 | $3,550 |
| 640i Gran Coupe | Rear-Wheel Drive | Automatic (S8) | 6 | 3.0 | Premium Gasoline | 20 | 29 | 23 | $3,550 |
| 640i xDrive Convertible | All-Wheel Drive | Automatic (S8) | 6 | 3.0 | Premium Gasoline | 19 | 28 | 22 | $3,750 |
| 640i xDrive Gran Coupe | All-Wheel Drive | Automatic (S8) | 6 | 3.0 | Premium Gasoline | 19 | 28 | 22 | $3,750 |
| 640i xDrive Gran Turismo | All-Wheel Drive | Automatic (S8) | 6 | 3.0 | Premium Gasoline | 20 | 28 | 23 | $3,550 |
| 650i Convertible | Rear-Wheel Drive | Automatic (S8) | 8 | 4.4 | Premium Gasoline | 17 | 25 | 20 | $4,100 |
| 650i Gran Coupe | Rear-Wheel Drive | Automatic (S8) | 8 | 4.4 | Premium Gasoline | 17 | 25 | 20 | $4,100 |
| 650i xDrive Convertible | All-Wheel Drive | Automatic (S8) | 8 | 4.4 | Premium Gasoline | 16 | 25 | 19 | $4,350 |
| 650i xDrive Gran Coupe | All-Wheel Drive | Automatic (S8) | 8 | 4.4 | Premium Gasoline | 16 | 25 | 19 | $4,350 |
| Alpina B6 xDrive Gran Coupe | All-Wheel Drive | Automatic (S8) | 8 | 4.4 | Premium Gasoline | 16 | 25 | 19 | $4,350 |
Frequently asked questions
What is the combined MPG of the 2018 BMW 6 Series?
According to EPA data, the 2018 BMW 6 Series is rated at 19–23 MPG combined for its conventional-fuel configurations.
How many cylinders does the 2018 BMW 6 Series have?
The EPA data lists 6 and 8 cylinders across its configurations.
What fuel type does the 2018 BMW 6 Series use?
It uses Premium Gasoline.
What is the annual fuel cost of the 2018 BMW 6 Series?
The EPA estimates annual fuel costs ranging from $3,550 to $4,350.