26/100
2008Subcompact CarsPremium

2008 BMW M6 Convertible

EPA ID: 24796
11
City MPG
13
Combined MPG
13MPG· Below Avg
17
Highway MPG

Fuel Economy Overview

The 2008 BMW M6 Convertible achieves an EPA-estimated 13 MPG in combined city and highway driving, with 11 MPG in the city and 17 MPG on the highway. Powered by a 5L 10-cylinder engine paired with a automatic (s7), this subcompact cars features Rear-Wheel Drive drive.

In terms of environmental impact, the 2008 M6 Convertible produces approximately 684 grams of CO2 per mile. This figure is measured under standardized EPA test conditions and represents tailpipe emissions only. For context, the average new vehicle sold in the United States produces approximately 400 grams of CO2 per mile, meaning this M6 Convertible has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $5,300, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $15,750 over a 5-year period. This calculation accounts for differences in fuel consumption efficiency and provides a practical measure of long-term ownership costs attributable to fuel economy.

Energy DNA

Vehicle ClassSubcompact Cars
Fuel TypePremium
Engine5L 10-cyl
AspirationNaturally Aspirated
TransmissionAutomatic (S7)
Drive TypeRear-Wheel Drive

Green Scorecard

CO2 Emissions684 g/mi
Start-Stop SystemNot Equipped
GHG Score-1/10
Smog RatingN/A
Est. Annual Cost$5,300
5-Year Cost DeltaSave $15,750

Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy

55% City45% Highway

Adjust the slider to match your daily driving habits. City driving involves stop-and-go traffic under 45mph, while highway driving represents sustained speeds over 55mph.

Your Real MPG
13.1
Impact vs EPA
$-24
/ year
💨

Aerodynamic Speed Penalty

EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Expect your real-world highway fuel economy to drop by roughly 15-20% at interstate speeds.

5-Year Total Cost of Ownership

Estimated Monthly Cost
$787/mo
Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.
15,000 mi
Value Depreciation
Est. value lost over 60 months
$17,500
37.1%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$20,192
42.8%
Estimated Insurance
Based on vehicle class risk profile
$9,125
19.3%
State Registration Fees
Based on National Average DMV base rates
$400
0.8%
Total 5-Year Cost$47,217

Recall Intelligence

Campaign #12V126000·2012-04-30
critical
Component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

BMW IS RECALLING CERTAIN MODEL YEAR 2004-2010 5-SERIES, MODEL YEAR 2004-2010 6-SERIES, MODEL YEAR 2006-2010 M5, AND MODEL YEAR 2007-2010 M6 VEHICLES. THE INSULATED BULKHEAD CONNECTOR FOR THE POSITIVE BATTERY CABLE MAY HAVE BEEN INCORRECTLY ATTACHED TO THE TRUNK FLOOR PANEL, WHICH CAN LEAD TO A LOOSENING OF THE BOLT CONNECTION. AS IT LOOSENS, AN INCREASE IN ELECTRICAL RESISTANCE AT THIS CABLE CONNECTION IS POSSIBLE AND COULD CAUSE THE CABLE CONNECTION TO OVERHEAT.

Consequence & Remedy

Consequence: OVERHEATING COULD LEAD TO A FIRE, EVEN WHILE THE VEHICLE IS NOT IN USE. AS A PRECAUTION, OWNERS ARE ADVISED TO PARK OUTSIDE UNTIL THE REMEDY HAS BEEN MADE.

Remedy: BMW WILL NOTIFY OWNERS, AND DEALERS WILL INSPECT AND SECURE THE BATTERY BOLT CABLE CONNECTION AS NECESSARY, FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 30, 2012. OWNERS MAY CONTACT BMW CUSTOMER RELATIONS AND SERVICES AT 1-800-525-7417.

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Looking for comprehensive historical data?

NHTSA FARS (Fatal Crash History) and broader generational safety trends are aggregated at the model level rather than by specific engine configurations. View the complete historical data profile for all BMW M6 Convertible configurations.

View Model History

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Fuel Cost Analysis

Annual Fuel Cost$5,300
vs. Avg Vehicle (5 yrs)Save $15,750

Based on 15,000 miles/year and current fuel prices.

Efficiency Breakdown

City11 MPG
Highway17 MPG
Combined13 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

136.7 metric tons CO₂
Equivalent To:
🌳 169 tree seedlings grown for 10 yrs
✈️ 11.4 cross-country flights/yr

Data Provenance

Data directly from the EPA National Vehicle and Fuel Emissions Laboratory. The combined rating is a weighted average (55% city, 45% highway). For official figures, visit fueleconomy.gov.