2018 BMW i3 EPA Fuel Economy Summary
The 2018 BMW i3 plug-in hybrid delivers up to 97 miles of all-electric range rated at 109 MPGe, transitioning to an EPA-estimated 35 MPG combined on gasoline once battery charge is depleted.
2018 BMW i3 Powertrain & Efficiency Comparison
Factual efficiency differences across gasoline, hybrid, plug-in hybrid, and electric variants
Plug-In Hybrid (PHEV)
Gasoline Combined: 35 MPG • Annual Energy Cost: $2,150
Battery Electric (BEV)
Annual Energy Cost: $650–$2,150 (2 configurations)
Official EPA Fuel Economy Ratings by Configuration (4 Variants)
Laboratory certification test values across engine, transmission, and drivetrain permutations
| Configuration / Model | Powertrain | Drivetrain | Transmission | City | Highway | Combined | EV Range | Annual Fuel Cost | CO2 (g/mi) |
|---|---|---|---|---|---|---|---|---|---|
| i3 (94Ah) Electricity | Electric (BEV) | Rear-Wheel Drive | Automatic (A1) | 129 MPGe | 106 MPGe | 118 MPGe | 114 mi | $650 | — |
| i3s (94Ah) Electricity | Electric (BEV) | Rear-Wheel Drive | Automatic (A1) | 126 MPGe | 99 MPGe | 112 MPGe | 107 mi | $650 | — |
| i3 (94Ah) with Range Extender Premium Gas or Electricity | 0.6L Plug-in Hybrid | Rear-Wheel Drive | Automatic (A1) | 117 MPGe (36 MPG) | 101 MPGe (33 MPG) | 109 MPGe (35 MPG) | 97 mi | $2,150 | — |
| i3s (94Ah) with Range Extender Premium Gas or Electricity | 0.6L Plug-in Hybrid | Rear-Wheel Drive | Automatic (A1) | 117 MPGe (36 MPG) | 101 MPGe (33 MPG) | 109 MPGe (35 MPG) | 97 mi | $2,150 | — |
Deterministic Fuel Cost & Consumption Benchmarks
Standardized annual energy consumption and operating cost metrics based on 15,000 annual miles
Fuel Cost per 25 Miles
Based on $3.50 per gallon regular gasoline
Annual Fuel Consumption
Estimated annual energy units needed for 15,000 miles
5-Year Fuel Cost vs Avg Vehicle
Compared to the average new vehicle over 5 years
Fuel economy ratings, electric range figures, and energy cost estimates on this page are retrieved directly from the United States Environmental Protection Agency (EPA) and U.S. Department of Energy (FuelEconomy.gov) certified vehicle database.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.