2015 BMW 6 Series
13 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| 640i Convertible | 20 | 30 | 24 | Premium Gasoline | Rear-Wheel Drive | 3L 6-cyl Turbo | Automatic (S8) |
| 640i Coupe | 21 | 31 | 25 | Premium Gasoline | Rear-Wheel Drive | 3L 6-cyl Turbo | Automatic (S8) |
| 640i Gran Coupe | 20 | 30 | 24 | Premium Gasoline | Rear-Wheel Drive | 3L 6-cyl Turbo | Automatic (S8) |
| 640i xDrive Convertible | 20 | 29 | 23 | Premium Gasoline | All-Wheel Drive | 3L 6-cyl Turbo | Automatic (S8) |
| 640i xDrive Coupe | 20 | 29 | 23 | Premium Gasoline | All-Wheel Drive | 3L 6-cyl Turbo | Automatic (S8) |
| 640i xDrive Gran Coupe | 20 | 29 | 23 | Premium Gasoline | All-Wheel Drive | 3L 6-cyl Turbo | Automatic (S8) |
| 650i Convertible | 17 | 24 | 20 | Premium Gasoline | Rear-Wheel Drive | 4.4L 8-cyl Turbo | Automatic (S8) |
| 650i Coupe | 17 | 24 | 20 | Premium Gasoline | Rear-Wheel Drive | 4.4L 8-cyl Turbo | Automatic (S8) |
| 650i Gran Coupe | 17 | 24 | 20 | Premium Gasoline | Rear-Wheel Drive | 4.4L 8-cyl Turbo | Automatic (S8) |
| 650i xDrive Convertible | 16 | 24 | 19 | Premium Gasoline | All-Wheel Drive | 4.4L 8-cyl Turbo | Automatic (S8) |
| 650i xDrive Coupe | 16 | 24 | 19 | Premium Gasoline | All-Wheel Drive | 4.4L 8-cyl Turbo | Automatic (S8) |
| 650i xDrive Gran Coupe | 16 | 24 | 19 | Premium Gasoline | All-Wheel Drive | 4.4L 8-cyl Turbo | Automatic (S8) |
| Alpina B6 Gran Coupe xDrive | 16 | 24 | 19 | Premium Gasoline | All-Wheel Drive | 4.4L 8-cyl Turbo | Automatic (S8) |