2020 head-to-head · Subcompact Car
2020 Audi A3 vs BMW i3 Plug-in Hybrid
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
RWD · 0.6L 2-cyl · Single-speed · 100 MPGe + 31 MPG
The 2020 BMW i3 Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, 18¢/kWh electricity and $3.95/gal premium gas, it costs about $948 a year to fuel (100 MPGe + 31 MPG), versus $1,550 for the 2020 Audi A3 (30 MPG). That's roughly $602 a year, or about $3,011 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Audi A3
- BMW i3 Plug-in Hybrid
Side by side
| Audi A3 | BMW i3 Plug-in Hybrid | |
|---|---|---|
| $1,550 | Your annual fuel cost | $948 |
| 30 MPG | Combined efficiency | 100 MPGe + 31 MPG |
| 27 MPG | City | 107 MPGe / 30 MPG |
| 36 MPG | Highway | 93 MPGe / 31 MPG |
| — | Electricity use (kWh/100 mi) | 32 kWh |
| — | Driving range | 200 mi |
| — | All-electric range | 126 mi |
| 86 cu ft | Passenger volume | 84 cu ft |
| 12 cu ft | Cargo volume | 15 cu ft |
| 293 g/mi | Tailpipe CO₂ (g/mi) | 22 g/mi |
| 7/10 | EPA fuel economy score | 10/10 |
| 7/10 | EPA greenhouse gas score | 10/10 |
| — | Charge time at 240V | 7 hrs |
| Gas | Powertrain | Plug-in hybrid |
| Regular gasoline | Fuel | Premium gas + electricity |
| 2.0L 4-cyl turbo | Engine / motor | 0.6L 2-cyl |
| 7-speed dual-clutch | Transmission | Single-speed |
| FWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Audi A3 vs BMW i3 Plug-in Hybrid across model years
- Audi A3
- BMW i3 Plug-in Hybrid
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the BMW i3 Plug-in Hybrid has more cargo space (15 vs. 12 cu ft).
Among 39 2020 subcompact cars, the Audi A3 ranks 6th and the BMW i3 Plug-in Hybrid 3rd for lowest fuel cost.
The powertrains differ: the Audi A3 is a conventional gas model, while the BMW i3 Plug-in Hybrid is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2020 Audi A3 or the 2020 BMW i3 Plug-in Hybrid?
Measured by cost to drive, the BMW i3 Plug-in Hybrid. The Audi A3 is rated 30 MPG combined and the BMW i3 Plug-in Hybrid 100 MPGe + 31 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 Audi A3 vs. the BMW i3 Plug-in Hybrid per year?
At 15,000 miles a year with $3.10/gal regular gas, 18¢/kWh electricity and $3.95/gal premium gas, about $1,550 for the Audi A3 and $948 for the BMW i3 Plug-in Hybrid.
Which has more cargo space?
The BMW i3 Plug-in Hybrid, with 15 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
Audi A3 vs BMW i3 Plug-in Hybrid in other years
More 2020 comparisons
Audi A3 vs…
Or compare the 2020 Audi A3 with anything else: