2015 BMW M6 Gran Coupe — Full Specifications
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The 2015 BMW M6 Gran Coupe is a saloon/sedan powered by a 4.4L 8-cyl turbo premium gasoline engine. Its most fuel-efficient configuration returns around 20 mpg (UK) / 17 mpg (US EPA) combined, with 19–20 mpg (UK) across all configurations. Owners often keep a BMW M6 Gran Coupe workshop manual to hand for servicing and repairs.
Compared with the 2014 BMW M6 Gran Coupe: Fuel economy is essentially unchanged at around 20 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine | 4.4L 8-cyl turbo |
|---|---|
| Transmission | Manual 6-spd |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | Rear-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 97 cu ft (2,747 L) |
| Luggage Volume (EPA) | 12 cu ft (340 L) |
| Fuel Economy (UK) | 20 combined / 18 urban / 26 extra-urban mpg |
| Fuel Economy (US EPA) | 17 combined / 15 city / 22 highway mpg |
| CO₂ Emissions | 321 g/km |
| EPA Greenhouse Gas Score | 4 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $4,850 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2015 BMW M6 Gran Coupe, all with the 4.4L 8-cyl turbo engine. Combined fuel economy ranges from 16 to 17 mpg (US), or 19 to 20 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 4.4L 8-cyl turbo | Automatic (AM-S7) | Rear-Wheel Drive | 19 | 16 (14/20) | 344 | $5,150 |
| 4.4L 8-cyl turbo | Manual 6-spd | Rear-Wheel Drive | 20 | 17 (15/22) | 321 | $4,850 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 97 cubic feet (about 2,747 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2015 BMW M6 Gran Coupe
Running Costs: 2015 BMW M6 Gran Coupe
Covering around 8,000 miles a year in a 2015 BMW M6 Gran Coupe at 20 mpg combined, expect roughly 1,818 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $4,850 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
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2015 BMW M6 Gran Coupe Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
How It Compares
BMW models in our database average about 28 mpg (UK) combined on their most efficient configuration; the 2015 BMW M6 Gran Coupe's 20 mpg is 8 mpg below that make average. Its 321 g/km CO₂ figure is 81 g/km higher than the 240 g/km BMW average.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2015 BMW M6 Gran Coupe
Frequently Asked Questions
What engine does the 2015 BMW M6 Gran Coupe have?
It's fitted with a 4.4L 8-cyl turbo premium gasoline engine, paired with a manual 6-spd transmission.
What is the fuel economy of the 2015 BMW M6 Gran Coupe?
The most efficient configuration returns around 20 mpg (UK) combined, or 17 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 19 to 20 mpg.
How much does the 2015 BMW M6 Gran Coupe cost to fuel per year?
The US EPA estimates about $4,850 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
How much interior and luggage space does the 2015 BMW M6 Gran Coupe have?
EPA measures interior passenger volume at 97 cubic feet (about 2,747 litres) and luggage volume at 12 cubic feet (about 340 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.