840i Convertible
Rear-Wheel Drive · Automatic (S8) · Subcompact Cars
- MPG combined
- 24
- City / highway
- 22 / 29
- Engine
- 3.0L 6-cyl turbo
- Fuel
- Premium
- Annual fuel cost
- $3,400
- Tailpipe CO₂
- 361 g/mi
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World Of EVEditorial
BMW 8 Series
The BMW 8 Series has been sold in the US from 2019 to 2026, in 8 model years covered here. The 2026 line-up has 9 trims with 19–24 MPG combined.
Model years
2020 8 Series trims (6)
840i Coupe
Rear-Wheel Drive · Automatic (S8) · Subcompact Cars
- MPG combined
- 25
- City / highway
- 23 / 30
- Engine
- 3.0L 6-cyl turbo
- Fuel
- Premium
- Annual fuel cost
- $3,300
- Tailpipe CO₂
- 347 g/mi
840i Gran Coupe
Rear-Wheel Drive · Automatic (S8) · Midsize Cars
- MPG combined
- 24
- City / highway
- 22 / 29
- Engine
- 3.0L 6-cyl turbo
- Fuel
- Premium
- Annual fuel cost
- $3,400
- Tailpipe CO₂
- 361 g/mi
840i xDrive Convertible
All-Wheel Drive · Automatic (S8) · Subcompact Cars
- MPG combined
- 23
- City / highway
- 20 / 27
- Engine
- 3.0L 6-cyl turbo
- Fuel
- Premium
- Annual fuel cost
- $3,550
- Tailpipe CO₂
- 388 g/mi
840i xDrive Coupe
All-Wheel Drive · Automatic (S8) · Subcompact Cars
- MPG combined
- 23
- City / highway
- 21 / 27
- Engine
- 3.0L 6-cyl turbo
- Fuel
- Premium
- Annual fuel cost
- $3,550
- Tailpipe CO₂
- 380 g/mi
840i xDrive Gran Coupe
All-Wheel Drive · Automatic (S8) · Midsize Cars
- MPG combined
- 23
- City / highway
- 20 / 27
- Engine
- 3.0L 6-cyl turbo
- Fuel
- Premium
- Annual fuel cost
- $3,550
- Tailpipe CO₂
- 388 g/mi
Source: U.S. EPA / DOE fueleconomy.gov. Annual fuel cost is the EPA estimate for 15,000 miles a year at national average fuel and electricity prices.