2015 head-to-head · Subcompact Car
2015 Audi A3 vs Cadillac ELR
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · 1.4L 4-cyl · CVT · 82 MPGe + 33 MPG
The 2015 Cadillac ELR is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, it costs about $1,348 a year to fuel (82 MPGe + 33 MPG), versus $2,116 for the 2015 Audi A3 (28 MPG). That's roughly $768 a year, or about $3,841 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
- Cadillac ELR
Side by side
| Audi A3 | Cadillac ELR | |
|---|---|---|
| $2,116 | Your annual fuel cost | $1,348 |
| 28 MPG | Combined efficiency | 82 MPGe + 33 MPG |
| 24 MPG | City | 85 MPGe / 31 MPG |
| 35 MPG | Highway | 80 MPGe / 35 MPG |
| — | Electricity use (kWh/100 mi) | 41 kWh |
| — | Driving range | 340 mi |
| — | All-electric range | 37 mi |
| 79 cu ft | Passenger volume | 83 cu ft |
| 10 cu ft | Cargo volume | 11 cu ft |
| 314 g/mi | Tailpipe CO₂ (g/mi) | 91 g/mi |
| 7/10 | EPA fuel economy score | 10/10 |
| 7/10 | EPA greenhouse gas score | 10/10 |
| — | Charge time at 240V | 5 hrs |
| Gas | Powertrain | Plug-in hybrid |
| Premium gasoline | Fuel | Premium gas + electricity |
| 1.8L 4-cyl turbo | Engine / motor | 1.4L 4-cyl |
| 6-speed dual-clutch | Transmission | CVT |
| FWD | Drivetrain | FWD |
✓ 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 Cadillac ELR across model years
- Audi A3
- Cadillac ELR
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 Cadillac ELR has more passenger space (83 vs. 79 cu ft); the Cadillac ELR has more cargo space (11 vs. 10 cu ft).
Among 36 2015 subcompact cars, the Audi A3 ranks 14th and the Cadillac ELR 7th for lowest fuel cost.
The powertrains differ: the Audi A3 is a conventional gas model, while the Cadillac ELR is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2015 Audi A3 or the 2015 Cadillac ELR?
Measured by cost to drive, the Cadillac ELR. The Audi A3 is rated 28 MPG combined and the Cadillac ELR 82 MPGe + 33 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Audi A3 vs. the Cadillac ELR per year?
At 15,000 miles a year with $3.95/gal premium gas and 18¢/kWh electricity, about $2,116 for the Audi A3 and $1,348 for the Cadillac ELR.
Which has more cargo space?
The Cadillac ELR, with 11 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
Audi A3 vs Cadillac ELR in other years
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