2021 head-to-head · Subcompact Car
2021 Audi S5 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.
RWD · 3.0L 6-cyl turbo · 8-speed automatic · 26 MPG
The 2021 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 $2,279 a year to fuel (26 MPG), versus $2,576 for the 2021 Audi S5 (23 MPG). That's roughly $297 a year, or about $1,486 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 S5
- BMW 4 Series Hybrid
Side by side
| Audi S5 | BMW 4 Series Hybrid | |
|---|---|---|
| $2,576 | Your annual fuel cost | $2,279 |
| 23 MPG | Combined efficiency | 26 MPG |
| 20 MPG | City | 23 MPG |
| 28 MPG | Highway | 31 MPG |
| 84 cu ft | Passenger volume | 84 cu ft |
| 11 cu ft | Cargo volume | 9 cu ft |
| 380 g/mi | Tailpipe CO₂ (g/mi) | 338 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Hybrid |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | 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 S5 vs BMW 4 Series Hybrid across model years
- Audi S5
- 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 S5 has more cargo space (11 vs. 9 cu ft).
Among 34 2021 subcompact cars, the Audi S5 ranks 23rd and the BMW 4 Series Hybrid 19th for lowest fuel cost.
The powertrains differ: the Audi S5 is a conventional gas model, while the BMW 4 Series Hybrid is a full hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2021 Audi S5 or the 2021 BMW 4 Series Hybrid?
Measured by cost to drive, the BMW 4 Series Hybrid. The Audi S5 is rated 23 MPG combined and the BMW 4 Series Hybrid 26 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Audi S5 vs. the BMW 4 Series Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,576 for the Audi S5 and $2,279 for the BMW 4 Series Hybrid.
Which has more cargo space?
The Audi S5, with 11 cu ft of luggage volume versus 9 cu ft (EPA interior volume index).
Audi S5 vs BMW 4 Series Hybrid in other years
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