2018 BMW 340i
25MPG
Combined
2
Trims
← 2017
2018
Updated February 27, 2026
Looking at the 2018 BMW 340i? This Compact Sedan offers 23–25 combined MPG depending on trim and comes with 2 available configurations. We break down the specs, safety data, and how it compares to the competition.
2018 BMW 340i Specifications
| Spec | Value |
|---|---|
| Combined MPG | 23–25 combined MPG depending on trim |
| City MPG | 21 |
| Highway MPG | 32 |
| Body Style | Compact Sedan |
| Fuel Type | Premium |
| Drive | RWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| 6 cyl | 21/32/25 | 3.0L 6cyl | Automatic (S8) |
| Man | 19/29/23 | 3.0L 6cyl | Manual 6-spd |
Annual Fuel Cost
Based on EPA estimates, the 2018 BMW 340i costs approximately $2,450 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2018 BMW 340i
See how it stacks up against similar vehicles:
Other Model Years
- 2018 (this page)
- 2017 BMW 340i
- 2016 BMW 340i
Check Vehicle History
Considering a used BMW 340i? Get a comprehensive vehicle history report including accident records, ownership history, and more.
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