2018 BMW 6 Series
US · Subcompact Cars
The 2018 BMW 6 Series is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 3.0L 6-cylinder turbocharged (SIDI), 4.4L 8-cylinder turbocharged (SIDI)
- Transmission
- 8-speed automatic
- Drivetrain
- Varies by configuration: RWD, AWD
- Fuel
- Gasoline
- Economy
- 19 mpg (12.4 L/100 km) to 23 mpg (10.2 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 3.0L 6-cylinder turbocharged (SIDI), 4.4L 8-cylinder turbocharged (SIDI) | |
| Displacement | 3.0 L to 4.4 L | |
| Cylinders | 6 to 8 | |
| Aspiration | Turbocharged | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 8 | |
| Drivetrain | Varies by configuration: RWD, AWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 19 mpg (12.4 L/100 km) to 23 mpg (10.2 L/100 km) | EPA fueleconomy.gov |
| City | 16 mpg (14.7 L/100 km) to 20 mpg (11.8 L/100 km) | |
| Highway | 25 mpg (9.4 L/100 km) to 29 mpg (8.1 L/100 km) |
Our sources do not publish these for this vehicle: Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
10 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
- 640i Convertible · 3.0L · RWD · 8-speed automatic
- 640i Gran Coupe · 3.0L · RWD · 8-speed automatic
- 640i xDrive Convertible · 3.0L · AWD · 8-speed automatic
- 640i xDrive Gran Coupe · 3.0L · AWD · 8-speed automatic
- 640i xDrive Gran Turismo · 3.0L · AWD · 8-speed automatic
- 650i Convertible · 4.4L · RWD · 8-speed automatic
- 650i Gran Coupe · 4.4L · RWD · 8-speed automatic
- 650i xDrive Convertible · 4.4L · AWD · 8-speed automatic
- 650i xDrive Gran Coupe · 4.4L · AWD · 8-speed automatic
- Alpina B6 xDrive Gran Coupe · 4.4L · AWD · 8-speed automatic
Recalls
No recall campaigns were found in NHTSA data at the last check. Last checked November 10, 2026.
Data sources
- EPA fueleconomy.gov · retrieved November 5, 2026 · US Government public data
Source checked: November 5, 2026
Data verified: November 5, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 2017 BMW 6 Series
Gasoline
Varies by configuration: 3.0L 6-cylinder turbocharged (SIDI), 4.4L 8-cylinder turbocharged (SIDI) · Varies by configuration: RWD, AWD
24 mpg (9.8 L/100 km) to 18 mpg (13.1 L/100 km) - 2019 BMW 6 Series
Gasoline
Varies by configuration: 3.0L 6-cylinder turbocharged (SIDI), 4.4L 8-cylinder turbocharged (SIDI) · Varies by configuration: RWD, AWD
23 mpg (10.2 L/100 km) to 20 mpg (11.8 L/100 km)
Frequently asked questions
What engine does the 2018 BMW 6 Series have?
Varies by configuration: 3.0L 6-cylinder turbocharged (SIDI), 4.4L 8-cylinder turbocharged (SIDI). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2018 BMW 6 Series?
Combined fuel economy is 19 mpg (12.4 L/100 km) to 23 mpg (10.2 L/100 km), as published by the source shown in the specification table.
Is the 2018 BMW 6 Series front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: RWD, AWD.
Are there recalls for the 2018 BMW 6 Series?
No recall campaigns were found in NHTSA data when we last checked on November 10, 2026. Recall status can change, so confirm with NHTSA or the manufacturer.