2025 head-to-head · Subcompact Car

2025 Audi S e-tron 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
$1,015/ year to fuel
90 MPGe
✓ Cheaper to run
$1,911/ year to fuel
31 MPG

The 2025 Audi S e-tron is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $1,015 a year to fuel (90 MPGe), versus $1,911 for the 2025 BMW 4 Series Hybrid (31 MPG). That's roughly $896 a year, or about $4,480 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 S e-tron
  • BMW 4 Series Hybrid

Side by side

Audi S e-tronBMW 4 Series Hybrid
$1,015 Your annual fuel cost $1,911
90 MPGe Combined efficiency 31 MPG
91 MPGe City 28 MPG
88 MPGe Highway 36 MPG
37.6 kWh Electricity use (kWh/100 mi) —
300 mi Driving range —
89 cu ft Passenger volume 86 cu ft
11 cu ft Cargo volume 12 cu ft
0 g/mi Tailpipe CO₂ (g/mi) 285 g/mi
9/10 EPA fuel economy score 6/10
10/10 EPA greenhouse gas score 6/10
15.5 hrs Charge time at 240V —
Electric Powertrain Hybrid
Electricity Fuel Premium gasoline
Electric motors (591 kW) Engine / motor 2.0L 4-cyl turbo
Single-speed 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 S e-tron vs BMW 4 Series Hybrid across model years

  • Audi S e-tron
  • 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 Audi S e-tron has more passenger space (89 vs. 86 cu ft); the BMW 4 Series Hybrid has more cargo space (12 vs. 11 cu ft).

Among 30 2025 subcompact cars, the Audi S e-tron ranks 2nd and the BMW 4 Series Hybrid 8th for lowest fuel cost.

Because the Audi S e-tron is fully electric, it has no tailpipe emissions and its running cost depends almost entirely on your electricity rate. Cheap overnight home charging widens its advantage over the BMW 4 Series Hybrid; relying on DC fast chargers can erase it.

Frequently asked questions

Which is more fuel-efficient, the 2025 Audi S e-tron or the 2025 BMW 4 Series Hybrid?

Measured by cost to drive, the Audi S e-tron. The Audi S e-tron is rated 90 MPGe combined and the BMW 4 Series Hybrid 31 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2025 Audi S e-tron vs. the BMW 4 Series Hybrid per year?

At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $1,015 for the Audi S e-tron 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 11 cu ft (EPA interior volume index).

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