1998 BMW M3 Convertible MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 1998 BMW M3 Convertible.

The 1998 BMW M3 Convertible has 2 model options: Automatic 5-spd 6-cyl, 3.2 L and Manual 5-spd 6-cyl, 3.2 L.

The 1998 BMW M3 Convertible Automatic 5-spd 6-cyl, 3.2 L runs on regular gasoline and is in the Minicompact Cars car class.

The 1998 BMW M3 Convertible Manual 5-spd 6-cyl, 3.2 L runs on regular gasoline and is in the Minicompact Cars car class.

🛣 How Many Miles per Gallon (MPG) Does a 1998 BMW M3 Convertible Get?

Across all models, the combined average MPG for the 1998 BMW M3 Convertible is 20 miles per gallon.

The table below breaks down the MPG for each model option:

Model OptionCombined MPGCity MPGHighway MPG
Automatic 5-spd 6-cyl, 3.2 L181523
Manual 5-spd 6-cyl, 3.2 L211826

💵 What is the Average Yearly Fuel Cost for a 1998 BMW M3 Convertible?

The average fuel costs for all models of the 1998 BMW M3 Convertible is $3,250.

The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

Comparing a 1998 BMW M3 Convertible to an average vehicle over 5 years, you will spend $4,750 more on fuel.

The table below shows the fuel costs and 5-year save/spend for each model option:

Model OptionFuel Cost5-Year Save/Spend
Automatic 5-spd 6-cyl, 3.2 L$3,500spend $6,000 more
Manual 5-spd 6-cyl, 3.2 L$3,000spend $3,500 more

🛢 How Many Barrels of Petroleum Does a 1998 BMW M3 Convertible Consume?

Across all models, the average number barrels of petroleum that the 1998 BMW M3 Convertible will consume in one year is 16 barrels.

The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.

Model OptionBarrels
Automatic 5-spd 6-cyl, 3.2 L17
Manual 5-spd 6-cyl, 3.2 L14

💨 How Many Grams of CO2 Does a 1998 BMW M3 Convertible Emit?

The 1998 BMW M3 Convertible will emit an average of about -15,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 1 tree would be needed to offset emissions from the 1998 BMW M3 Convertible.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 2 1998 BMW M3 Convertible model options.

Automatic 5-spd 6-cyl, 3.2 L

The table below contains all of the details we have for the 1998 BMW M3 Convertible Automatic 5-spd 6-cyl, 3.2 L:

City MPG15
Highway MPG23
Combined MPG18
Save/Spend vs Average CarSpend $6,000
Fuel Cost$3,500
Fuel Type 1Regular
Barrels of Petroleum17
Grams of CO2-15,000
Trees Needed to Offset-1
DriveRear-Wheel Drive
Cylinders6
Displacement3.2
TransmissionAutomatic 5-spd
Vehicle ClassMinicompact Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Manual 5-spd 6-cyl, 3.2 L

The table below contains all of the details we have for the 1998 BMW M3 Convertible Manual 5-spd 6-cyl, 3.2 L:

City MPG18
Highway MPG26
Combined MPG21
Save/Spend vs Average CarSpend $3,500
Fuel Cost$3,000
Fuel Type 1Regular
Barrels of Petroleum14
Grams of CO2-15,000
Trees Needed to Offset-1
DriveRear-Wheel Drive
Cylinders6
Displacement3.2
TransmissionManual 5-spd
Vehicle ClassMinicompact Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "1998 BMW M3 Convertible MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/bmw/m3-convertible/1998.

  • "1998 BMW M3 Convertible MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/bmw/m3-convertible/1998. Accessed January 3, 2026.

  • 1998 BMW M3 Convertible MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/bmw/m3-convertible/1998.