2015 head-to-head · Subcompact Car

2015 Audi A3 vs Audi A3 Diesel

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$2,116/ year to fuel
28 MPG
✓ Cheaper to run
$1,586/ year to fuel
35 MPG

FWD · 2.0L 4-cyl turbo · 6-speed dual-clutch · 35 MPG

The 2015 Audi A3 Diesel is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and $3.70/gal diesel fuel, it costs about $1,586 a year to fuel (35 MPG), versus $2,116 for the 2015 Audi A3 (28 MPG). That's roughly $530 a year, or about $2,652 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
  • Audi A3 Diesel

Side by side

Audi A3Audi A3 Diesel
$2,116 Your annual fuel cost $1,586
28 MPG Combined efficiency 35 MPG
24 MPG City 31 MPG
35 MPG Highway 41 MPG
79 cu ft Passenger volume 86 cu ft
10 cu ft Cargo volume 12 cu ft
314 g/mi Tailpipe CO₂ (g/mi) 292 g/mi
7/10 EPA fuel economy score 8/10
7/10 EPA greenhouse gas score 8/10
Gas Powertrain Diesel
Premium gasoline Fuel Diesel
1.8L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
6-speed dual-clutch Transmission 6-speed dual-clutch
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 Audi A3 Diesel across model years

  • Audi A3
  • Audi A3 Diesel

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 Audi A3 Diesel has more passenger space (86 vs. 79 cu ft); the Audi A3 Diesel has more cargo space (12 vs. 10 cu ft).

Among 36 2015 subcompact cars, the Audi A3 ranks 14th and the Audi A3 Diesel 9th for lowest fuel cost.

The powertrains differ: the Audi A3 is a conventional gas model, while the Audi A3 Diesel is a diesel.

Frequently asked questions

Which is more fuel-efficient, the 2015 Audi A3 or the 2015 Audi A3 Diesel?

Measured by cost to drive, the Audi A3 Diesel. The Audi A3 is rated 28 MPG combined and the Audi A3 Diesel 35 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 Audi A3 vs. the Audi A3 Diesel per year?

At 15,000 miles a year with $3.95/gal premium gas and $3.70/gal diesel fuel, about $2,116 for the Audi A3 and $1,586 for the Audi A3 Diesel.

Which has more cargo space?

The Audi A3 Diesel, with 12 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).

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