2026 head-to-head · Subcompact Car

2026 Audi A3 vs BMW 4 Series 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.

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

AWD · 2.0L 4-cyl turbo · 7-speed dual-clutch · 28 MPG

✓ Cheaper to run
$1,911/ year to fuel
31 MPG

The 2026 BMW 4 Series Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $1,911 a year to fuel (31 MPG), versus $2,116 for the 2026 Audi A3 (28 MPG). That's roughly $205 a year, or about $1,024 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 4 Series Hybrid

Side by side

Audi A3BMW 4 Series Hybrid
$2,116 Your annual fuel cost $1,911
28 MPG Combined efficiency 31 MPG
24 MPG City 28 MPG
34 MPG Highway 36 MPG
87 cu ft Passenger volume 86 cu ft
8 cu ft Cargo volume 12 cu ft
323 g/mi Tailpipe CO₂ (g/mi) 285 g/mi
5/10 EPA fuel economy score 6/10
5/10 EPA greenhouse gas score 6/10
Gas Powertrain Hybrid
Premium gasoline Fuel Premium gasoline
2.0L 4-cyl turbo Engine / motor 2.0L 4-cyl turbo
7-speed dual-clutch Transmission 8-speed automatic
AWD 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 4 Series Hybrid across model years

  • Audi A3
  • BMW 4 Series 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 4 Series Hybrid has more cargo space (12 vs. 8 cu ft).

Among 26 2026 subcompact cars, the Audi A3 ranks 9th and the BMW 4 Series Hybrid 6th for lowest fuel cost.

The powertrains differ: the Audi A3 is a conventional gas model, while the BMW 4 Series Hybrid is a full hybrid.

Frequently asked questions

Which is more fuel-efficient, the 2026 Audi A3 or the 2026 BMW 4 Series Hybrid?

Measured by cost to drive, the BMW 4 Series Hybrid. The Audi A3 is rated 28 MPG combined and the BMW 4 Series Hybrid 31 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2026 Audi A3 vs. the BMW 4 Series Hybrid per year?

At 15,000 miles a year with $3.95/gal premium gas, about $2,116 for the Audi A3 and $1,911 for the BMW 4 Series Hybrid.

Which has more cargo space?

The BMW 4 Series Hybrid, with 12 cu ft of luggage volume versus 8 cu ft (EPA interior volume index).

Audi A3 vs BMW 4 Series Hybrid in other years

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