2025 BMW 3 Series vs 2026 Audi A3
Comparison Overview
Deciding between the established 2025 BMW 3 Series and the freshly updated 2026 Audi A3 comes down to power versus pocketbook. The average buyer is often torn between paying more for premium performance or saving upfront. The BMW commands a $5,850 higher MSRP at $45,950 compared to the A3's $40,100. However, the 3 Series delivers noticeably more grunt with 255 hp and 295 lb-ft of torque, significantly outpacing the A3's 201 hp. Fuel economy is close, but the BMW gets 31 combined MPG, though it mandates premium fuel, whereas the A3 achieves 28 combined MPG on regular. The A3 is also physically smaller (177.3 inches long vs. 185.9 inches for the BMW), which helps maneuverability but impacts utility, as the BMW offers nearly double the cargo space at 16.9 cu ft versus the A3's 8.3 cu ft.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 Audi A3
The 2026 Audi A3 wins for daily commuting due to its lower MSRP and ability to use regular unleaded gasoline.
2025 BMW 3 Series
The 2025 BMW 3 Series is better for families as it offers substantially more cargo capacity at 16.9 cubic feet.
2025 BMW 3 Series
The BMW 3 Series provides significantly better output, boasting 255 hp and 295 lb-ft of torque.
2026 Audi A3
The Audi A3 presents superior value, costing $5,850 less and accepting regular unleaded fuel.
Choose the BMW 3 Series if...
- You prioritize outright performance, benefiting from the 54 hp advantage (255 hp total).
- You need practical storage, as the 16.9 cu ft cargo capacity is nearly double the competitor's.
- You prefer traditional rear-wheel drive dynamics paired with a 28/35 MPG split.
Choose the Audi A3 if...
- You want to save money upfront, as the MSRP starts $5,850 lower at $40,100.
- You prefer the security of standard All-Wheel Drive for varied weather conditions.
- You want to save on fuel costs by using regular unleaded gasoline instead of premium.
Key Dimensions
| Dimension | BMW 3 Series | Audi A3 |
|---|---|---|
| Length | 185.9" | 177.3" |
| Width | 71.9" | 71.5" |
| Height | 56.8" | 56.2" |
| Wheelbase | 112.2" | 103.7" |
Features Comparison
Safety
| Feature | BMW | Audi |
|---|---|---|
| Driver Attention Alert | ✓ | — |
| Pre-Collision Safety System | ✓ | ✓ |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front 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 |
| Brake Drying | ✓ | — |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | — |
| Brake Preparation System | ✓ | — |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | — |
| LED Headlights | ✓ | ✓ |
| Self-Leveling Headlights | ✓ | — |
| Daytime Running Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Height Adjustable Headrests | ✓ | ✓ |
| Rear Headrests | 3 | 3 |
| Rear Height Adjustable Headrests | ✓ | ✓ |
| Rear Center 3-Point Seatbelt | ✓ | ✓ |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Blind Spot Monitor | — | ✓ |
| Lane Departure Warning | — | ✓ |
| Rear Cross Traffic Alert | — | ✓ |
| Dual Rear Side-Mounted Airbags | — | ✓ |
| Rear Solid Disc Brakes | — | ✓ |
Engine
| Feature | BMW | Audi |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | inline 4 |
| Base Engine Type | mild hybrid | mild hybrid |
| Horsepower | 255 hp @ 4700 rpm | 201 hp |
| Torque | 295 lb-ft @ 1600 rpm | 236 lb-ft |
| 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 | BMW | Audi |
|---|---|---|
| Transmission Type | 8-speed shiftable automatic | 7-speed automated manual |
| Drivetrain Type | rear wheel drive | all wheel drive |
| Center Differential Type | — | Limited Slip |
| Hill Descent Control | — | ✓ |
Fuel
| Feature | BMW | Audi |
|---|---|---|
| Fuel Type | premium unleaded (required) | regular unleaded |
| EPA Fuel Economy (City/Highway) | 28/35 MPG | 24/34 MPG |
| EPA Fuel Economy (Combined) | 31 MPG | 28 MPG |
| EPA Driving Range (City/Highway) | 436.8/546.0 mi. | 348.0/493.0 mi. |
| Fuel Tank Capacity | 15.6 gal. | 14.5 gal. |
Comfort & Convenience
| Feature | BMW | Audi |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Tilt and Telescopic Steering Wheel | ✓ | ✓ |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Cruise Control on Steering Wheel | ✓ | — |
| Audio Controls on Steering Wheel | ✓ | ✓ |
| Electric Power Steering | ✓ | ✓ |
| Rear View Camera | ✓ | ✓ |
| Cruise Control | ✓ | ✓ |
| Universal Remote Transmitter | ✓ | — |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Front Seatback Storage | ✓ | — |
| Dual Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts | ✓ | ✓ |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | — |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Front Parking Sensors | — | ✓ |
| Rear Parking Sensors | — | ✓ |
| Driver Assisted Parking Assist | — | ✓ |
| Leather Steering Wheel | — | ✓ |
| Three Zone Climate Control | — | ✓ |
In Car Entertainment
| Feature | BMW | Audi |
|---|---|---|
| Infotainment Display | 14.9 in | 10.1 in |
| AM/FM Stereo | ✓ | ✓ |
| Stereo Power | 205W | — |
| Speaker System | 10 | 6 |
| Subwoofer Count | 2 | — |
| Android Auto (Wireless) | ✓ | ✓ |
| Apple CarPlay (Wireless) | ✓ | ✓ |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | — |
| Satellite Radio Trial Period | 12 months | — |
Power Feature
| Feature | BMW | Audi |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass | 1st Row Power Glass Extended |
| Remote Keyless Entry | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | BMW | Audi |
|---|---|---|
| Front Head Room | 38.7 in. | 36.8 in. |
| Front Leg Room | 42.0 in. | 41.2 in. |
| Front Shoulder Room | 56.0 in. | 54.8 in. |
| Seat Material: Leatherette | ✓ | — |
| Front Seat Type: Sport | ✓ | — |
| Driver Seat Power Adjustments | 10-way | 8-way |
| Driver Seat Manual Adjustments | 2-way | — |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | Power |
| Driver Seat Thigh Extension | ✓ | — |
| Driver Seat Memory Settings | 2 | — |
| Passenger Seat Power Adjustments | 10-way | 8-way |
| Passenger Seat Manual Adjustments | 2-way | — |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | Power |
| Passenger Seat Thigh Extension | ✓ | — |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Seat Material: Leather | — | ✓ |
| Front Seat Type: Bucket | — | ✓ |
Rearseats
| Feature | BMW | Audi |
|---|---|---|
| Rear Head Room | 37.6 in. | 36.6 in. |
| Rear Leg Room | 35.2 in. | 35.2 in. |
| Rear Shoulder Room | 54.6 in. | 53.0 in. |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Rear Seat Feature | ✓ | ✓ |
| Pass-Thru Center Armrest | ✓ | ✓ |
Tires and Wheels
| Feature | BMW | Audi |
|---|---|---|
| Wheel Material | Alloy | Alloy |
| Wheel Size | 18 x 7.5 in | — |
| Tire Size | 225/45R18 | 225/45R17 |
| Run Flat Tires | ✓ | — |
| Wheel Diameter | — | 17 in |
| Tire Type | — | All Season |
| Spare Tire Type | — | Temporary |
| Spare Tire Location | — | Inside Mounted |
Suspension
| Feature | BMW | Audi |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | BMW | Audi |
|---|---|---|
| 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./ 36000 mi. | 3 yr./ 30000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 BMW 3 Series and 2026 Audi A3.
How much more expensive is the 2025 BMW 3 Series compared to the 2026 Audi A3?
The BMW 3 Series has a higher starting MSRP of $45,950, which is $5,850 more than the 2026 Audi A3's base price of $40,100.
Which sedan offers better fuel flexibility regarding gas type?
The 2026 Audi A3 is more flexible as it only requires regular unleaded fuel, while the 2025 BMW 3 Series mandates premium unleaded.
Is the performance gap between the two models significant?
Yes, the BMW 3 Series has a noticeable advantage, producing 255 horsepower and 295 lb-ft of torque compared to the Audi A3's 201 hp.
If I carry a lot of gear, which car should I choose?
You should definitely lean toward the BMW 3 Series; its 16.9 cubic feet of cargo space is substantially larger than the A3's 8.3 cubic feet.
Does the drivetrain setup differ between these two base models?
They have contrasting setups; the base BMW 3 Series features rear-wheel drive, whereas the base Audi A3 comes standard with all-wheel drive.
How do their overall sizes compare?
The BMW 3 Series is physically larger, measuring 185.9 inches in length, making it about 8.6 inches longer than the 177.3-inch Audi A3.
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