2020 BMW i8 EPA Fuel Economy Summary

The 2020 BMW i8 plug-in hybrid delivers up to 18 miles of all-electric range rated at 69 MPGe, transitioning to an EPA-estimated 27 MPG combined on gasoline once battery charge is depleted.

Electric Driving Range
18 mi
All-electric battery range
Electric Mode MPGe
69 MPGe
Combined electric efficiency
Gasoline Combined
27 MPG
Gas-only combined fuel economy
Annual Energy Cost
$2,800
EPA estimate @ 15,000 miles/yr

Official EPA Fuel Economy Ratings by Configuration (2 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)
I8 Coupe Premium and Electricity 1.5L Plug-in Hybrid All-Wheel Drive Automatic 6-spd 68 MPGe (26 MPG) 70 MPGe (29 MPG) 69 MPGe (27 MPG) 18 mi $2,800
I8 Roadster Premium and Electricity 1.5L Plug-in Hybrid All-Wheel Drive Automatic 6-spd 68 MPGe (26 MPG) 70 MPGe (29 MPG) 69 MPGe (27 MPG) 18 mi $2,800
EPA Test Methodology: Fuel economy estimates are determined by vehicle manufacturers in accordance with EPA regulations (40 CFR Part 600) and verified by EPA laboratories. Estimates assume 15,000 miles per year of driving (55% city, 45% highway) at prevailing fuel and electricity prices.

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

Official EPA Benchmark

Compared to the average new vehicle over 5 years

Official US Government Data Provenance

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.