2026 Audi S3 vs 2026 BMW 5 Series
Comparison Overview
Choosing between the nimble, sporty 2026 Audi S3 sedan and the more substantial 2026 BMW 5 Series often boils down to space versus spirit. If your main concern is maximizing daily running costs, the Audi S3 is a clear frontrunner, delivering a combined 26 MPG compared to the larger BMW's less efficient profile. However, the S3 demands premium fuel and offers just 8.3 cu ft of cargo space, while the BMW provides a massive 18.4 cu ft for luggage. Power-wise, the S3 packs 328 hp, significantly more than the 5 Series' 255 hp, despite both sharing 295 lb-ft of torque. The significant $7,900 difference in MSRP, favoring the Audi at $52,000, makes the S3 the sensible choice for budget-conscious drivers who prioritize straight-line performance over sheer size and utility.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 Audi S3
The Audi S3 achieves better fuel economy at 26 combined MPG, making daily driving less expensive despite requiring premium fuel.
2026 BMW 5 Series
The BMW 5 Series offers substantially more utility with 18.4 cu ft of cargo space compared to the S3's 8.3 cu ft.
2026 Audi S3
The 2026 Audi S3 delivers significantly more horsepower at 328 hp versus the BMW's 255 hp.
2026 Audi S3
The Audi S3 is priced $7,900 lower than the BMW 5 Series while offering superior fuel efficiency.
Choose the Audi S3 if...
- You prioritize raw acceleration and performance, given its 328 hp output.
- You want to save money on the initial purchase, as it costs $7,900 less than the 5 Series.
- You live in an area where the smaller 177.4-inch length helps with tight parking maneuvers.
Choose the BMW 5 Series if...
- You need significant luggage capacity, as its 18.4 cu ft dwarfs the S3’s 8.3 cu ft.
- You prefer a traditional 8-speed automatic transmission over an automated manual.
- You want a larger vehicle footprint (199.2 inches long) for a more commanding presence on the road.
Key Dimensions
| Dimension | Audi S3 | BMW 5 Series |
|---|---|---|
| Length | 177.4" | 199.2" |
| Width | 71.5" | 74.8" |
| Height | 55.7" | 59.6" |
| Wheelbase | 103.6" | 117.9" |
Features Comparison
Safety
| Feature | Audi | BMW |
|---|---|---|
| Blind Spot Monitor | ✓ | ✓ |
| Lane Departure Warning | ✓ | ✓ |
| Rear Cross Traffic Alert | ✓ | — |
| Pre-Collision Safety System | ✓ | ✓ |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front Side-Mounted Airbags | ✓ | ✓ |
| Dual Rear Side-Mounted Airbags | ✓ | — |
| Front Head Airbags | ✓ | ✓ |
| Rear Head Airbags | ✓ | ✓ |
| Passenger Airbag Occupant Sensing Deactivation | ✓ | ✓ |
| Electronic Stability Control | ✓ | ✓ |
| Traction Control System | ✓ | ✓ |
| LATCH System | ✓ | ✓ |
| Rear Door Child Safety Locks | ✓ | ✓ |
| Anti-lock Brakes (ABS) | 4-Wheel | 4-Wheel |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Headlight Washers | ✓ | — |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Fixed Headrests | ✓ | — |
| Rear Headrests | 3 | 3 |
| Rear Height Adjustable Headrests | ✓ | ✓ |
| Rear Center 3-Point Seatbelt | ✓ | ✓ |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | — |
| Lane Keeping Assist System | — | ✓ |
| Driver Attention Alert | — | ✓ |
| Brake Drying | — | ✓ |
| Brake Preparation System | — | ✓ |
| Headlight Delay-Off | — | ✓ |
| Self-Leveling Headlights | — | ✓ |
| Front Height Adjustable Headrests | — | ✓ |
Engine
| Feature | Audi | BMW |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | inline 4 |
| Base Engine Type | gas | mild hybrid |
| Horsepower | 328 hp | 255 hp @ 4700 rpm |
| Torque | 295 lb-ft | 295 lb-ft @ 1600 rpm |
| Number of Valves | 16 | 16 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | Audi | BMW |
|---|---|---|
| Transmission Type | 7-speed automated manual | 8-speed shiftable automatic |
| Drivetrain Type | all wheel drive | rear wheel drive |
| Center Differential Type | Limited Slip | Limited Slip |
| Hill Descent Control | ✓ | — |
Fuel
| Feature | Audi | BMW |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (recommended) |
| EPA Fuel Economy (City/Highway) | 23/31 MPG | — |
| EPA Fuel Economy (Combined) | 26 MPG | — |
| EPA Driving Range (City/Highway) | 333.5/449.5 mi. | 0/0 mi. |
| Fuel Tank Capacity | 14.5 gal. | 15.9 gal. |
Comfort & Convenience
| Feature | Audi | BMW |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Tilt and Telescopic Steering Wheel | ✓ | — |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Audio Controls on Steering Wheel | ✓ | ✓ |
| Electric Power Steering | ✓ | ✓ |
| Rear View Camera | ✓ | ✓ |
| Front Parking Sensors | ✓ | ✓ |
| Rear Parking Sensors | ✓ | ✓ |
| Driver Assisted Parking Assist | ✓ | — |
| Wireless Charging Pad | ✓ | ✓ |
| Cruise Control | ✓ | ✓ |
| Universal Remote Transmitter | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Front Seatback Storage | ✓ | — |
| Leather Steering Wheel | ✓ | — |
| Three Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts | ✓ | ✓ |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | — |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Power Tilt and Telescopic Steering Wheel | — | ✓ |
| Cruise Control on Steering Wheel | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
In Car Entertainment
| Feature | Audi | BMW |
|---|---|---|
| Infotainment Display | 10.1 in | 14.9 in |
| AM/FM Stereo | ✓ | ✓ |
| Premium Speaker Brand | Sonos | Harman/Kardon |
| Stereo Power | 680W | 205W |
| Speaker System | 15 | 12 |
| Surround Audio | Discrete | — |
| Android Auto (Wireless) | ✓ | — |
| Apple CarPlay (Wireless) | ✓ | — |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 3 months | 12 months |
| Subwoofer Count | — | 2 |
| Android Auto (Wired) | — | ✓ |
| Apple CarPlay (Wired) | — | ✓ |
| Speed Sensitive Volume Control | — | ✓ |
Power Feature
| Feature | Audi | BMW |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass Extended | 1st Row Power Glass |
| Keyless Entry | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
| Reverse Tilt Passenger Mirror | — | ✓ |
Frontseats
| Feature | Audi | BMW |
|---|---|---|
| Front Head Room | 36.8 in. | 38.8 in. |
| Front Leg Room | 41.2 in. | 41.3 in. |
| Front Shoulder Room | 54.8 in. | 59.2 in. |
| Seat Material: Leather/Sueded Microfiber | ✓ | — |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Power Adjustments | 8-way | 8-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | Power |
| Passenger Seat Power Adjustments | 8-way | 8-way |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | Power |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Seat Material: Leatherette | — | ✓ |
| Driver Seat Manual Adjustments | — | 2-way |
| Driver Seat Thigh Extension | — | ✓ |
| Driver Seat Memory Settings | — | 2 |
| Passenger Seat Manual Adjustments | — | 2-way |
| Passenger Seat Thigh Extension | — | ✓ |
Rearseats
| Feature | Audi | BMW |
|---|---|---|
| Rear Head Room | 36.6 in. | 37.5 in. |
| Rear Leg Room | 35.2 in. | 37.0 in. |
| Rear Shoulder Room | 53.0 in. | 56.9 in. |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Rear Seat Feature | ✓ | — |
| Pass-Thru Center Armrest | ✓ | — |
| Folding Center Armrest | — | ✓ |
Tires and Wheels
| Feature | Audi | BMW |
|---|---|---|
| Wheel Material | Alloy | — |
| Wheel Diameter | 18 in | — |
| Tire Type | All Season | All Season |
| Tire Size | 225/40R18 | 245/45R19 |
| Wheel Finish | — | Painted Alloy |
| Wheel Size | — | 19 x 8.5 in |
Suspension
| Feature | Audi | BMW |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Audi | BMW |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Corrosion/Rust Warranty | 12 yr./ unlimited mi. | 12 yr./ unlimited mi. |
| Roadside Assistance | 4 yr./ unlimited mi. | 4 yr./ unlimited mi. |
| Complimentary Scheduled Maintenance | 3 yr./ 30000 mi. | 3 yr./ 36000 mi. |
Frequently Asked Questions
Common questions about comparing the 2026 Audi S3 and 2026 BMW 5 Series.
Is the fuel economy difference between the 2026 Audi S3 and BMW 5 Series substantial?
Yes, the difference is quite noticeable for daily drivers. The Audi S3 achieves a combined 26 MPG, while the larger BMW 5 Series lags behind in efficiency.
Which sedan is more powerful for spirited driving?
The 2026 Audi S3 is significantly more powerful, boasting 328 horsepower, which beats the BMW 5 Series' 255 horsepower output.
Does the price difference justify the utility trade-off?
The Audi S3 saves you $7,900 upfront, but you sacrifice nearly 10 cubic feet of cargo capacity, as the 5 Series offers 18.4 cu ft versus the S3’s 8.3 cu ft.
Are there major differences in required fuel type?
The Audi S3 strictly requires premium unleaded gasoline for its performance specifications. Conversely, the BMW 5 Series only recommends premium fuel for optimal performance.
How does the size difference affect maneuverability?
The Audi S3 is much shorter at 177.4 inches long and narrower at 71.5 inches wide, making it feel much more nimble than the larger 199.2-inch BMW 5 Series.
What kind of transmission does each car use?
The S3 employs a 7-speed automated manual transmission paired with its AWD system, whereas the BMW 5 Series uses a conventional 8-speed shiftable automatic with its RWD setup.
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