2016 head-to-head · Subcompact Car
2016 BMW 6 Series vs Porsche 911
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2016 BMW 6 Series is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,469 a year to fuel (24 MPG), versus $2,576 for the 2016 Porsche 911 (23 MPG). That's roughly $107 a year, or about $537 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- BMW 6 Series
- Porsche 911
Side by side
| BMW 6 Series | Porsche 911 | |
|---|---|---|
| $2,469 | Your annual fuel cost | $2,576 |
| 24 MPG | Combined efficiency | 23 MPG |
| 20 MPG | City | 20 MPG |
| 30 MPG | Highway | 28 MPG |
| 87 cu ft | Passenger volume | 70 cu ft |
| 13 cu ft | Cargo volume | 5 cu ft |
| 372 g/mi | Tailpipe CO₂ (g/mi) | 385 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.4L 6-cyl |
| 8-speed automatic | Transmission | 7-speed dual-clutch |
| RWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
BMW 6 Series vs Porsche 911 across model years
- BMW 6 Series
- Porsche 911
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the BMW 6 Series has more passenger space (87 vs. 70 cu ft); the BMW 6 Series has more cargo space (13 vs. 5 cu ft).
Among 39 2016 subcompact cars, the BMW 6 Series ranks 27th and the Porsche 911 28th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2016 BMW 6 Series or the 2016 Porsche 911?
Measured by cost to drive, the BMW 6 Series. The BMW 6 Series is rated 24 MPG combined and the Porsche 911 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2016 BMW 6 Series vs. the Porsche 911 per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the BMW 6 Series and $2,576 for the Porsche 911.
Which has more cargo space?
The BMW 6 Series, with 13 cu ft of luggage volume versus 5 cu ft (EPA interior volume index).
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