2025 BMW 3 Series 330i vs 2025 Audi A4 Premium Plus S line
On paper, the 2025 BMW 3 Series 330i wins on $2,650 less, 5 MPG better, 22 more lb-ft torque. The 2025 Audi A4 Premium Plus S line has to win you at the dealer. Key numbers: $2,650 price gap, 255 vs 261 hp, 31 vs 26 MPG.
The 3 Series 330i leads on $2,650 less, 5 MPG better. The A4 Premium Plus S line leads on AWD. The spec table compares 6 specifications head to head.
Key Differences at a Glance
What's Actually Different
These two vehicles differ in 6 specifications.
Full Specification Comparison
Specifications and pricing reflect available data as of early 2026 and may not match current manufacturer figures. Always confirm details with an authorized dealer before making a purchase decision.
| Spec | 2025 BMW 3 Series 330i | 2025 Audi A4 Premium Plus S line |
|---|---|---|
| Pricing | ||
| MSRP | $45,950 | $48,600 |
| Powertrain | ||
| Engine | 2.0L I4 mild-hybrid Turbo | 2.0L I4 mild-hybrid Turbo |
| Horsepower | 255 hp | 261 hp |
| Torque | 295 lb-ft | 273 lb-ft |
| Transmission | 8-speed shiftable automatic | 7-speed automated manual |
| Drivetrain | RWD | AWD |
| Fuel Economy | ||
| City MPG | 28 | 23 |
| Highway MPG | 35 | 32 |
| Combined MPG | 31 | 26 |
| Fuel Tank | 15.6 gal | 15.3 gal |
| Annual Fuel Cost (EPA) | $1,850/yr | No published data |
| Dimensions | ||
| Curb Weight | 3,644 lbs | 3,682 lbs |
| Wheelbase | 112.2" | 111.0" |
| Length | 185.9" | 187.5" |
| Width | 71.9" | 72.7" |
| Height | 56.8" | 56.2" |
| Safety | ||
| NHTSA Overall | 5/5 stars | 5/5 stars |
| Warranty | ||
| Bumper-to-Bumper | 4yr/50k | 4yr/50k |
| Powertrain | 4yr/50k | 4yr/50k |
| Corrosion | 12yr/unlimited | 12yr/unlimited |
| Roadside Assistance | 4yr/unlimited | 4yr/unlimited |
Frequently Asked Questions
What is the price difference between the 2025 BMW 3 Series 330i and 2025 Audi A4 Premium Plus S line?
The 2025 BMW 3 Series 330i starts at $45,950, $2,650 less than the 2025 Audi A4 Premium Plus S line at $48,600. On a 60-month loan that is roughly $47/month. All prices are MSRP before destination and dealer fees.
Who should choose the 2025 BMW 3 Series 330i?
The 2025 BMW 3 Series 330i is the stronger pick when you want to keep $2,650 in your pocket and the 2025 BMW 3 Series 330i covers your needs; lower running costs matter to you, roughly $260/year less on fuel.
Who should choose the 2025 Audi A4 Premium Plus S line?
The 2025 Audi A4 Premium Plus S line is the stronger pick when you drive in snow, rain, or unpaved roads where AWD keeps you planted.
Which gets better fuel economy, the 2025 BMW 3 Series 330i or 2025 Audi A4 Premium Plus S line?
The 2025 BMW 3 Series 330i rates 31 combined MPG, 5 MPG ahead.
Which is more powerful, the 2025 BMW 3 Series 330i or 2025 Audi A4 Premium Plus S line?
The 2025 Audi A4 Premium Plus S line produces 261 hp, 6 more than the 2025 BMW 3 Series 330i at 255 hp. The 2025 BMW 3 Series 330i also leads in torque at 295 lb-ft vs 273 lb-ft. Drivetrains differ too: RWD on the 2025 BMW 3 Series 330i, AWD on the 2025 Audi A4 Premium Plus S line.
Is the 2025 BMW 3 Series 330i bigger than the 2025 Audi A4 Premium Plus S line?
The 2025 Audi A4 Premium Plus S line is 1.6″ longer at 187.5″ vs 185.9″. The 2025 BMW 3 Series 330i has a 1.2″ longer wheelbase, which typically means more rear-seat legroom.
Do the 2025 BMW 3 Series 330i and 2025 Audi A4 Premium Plus S line have the same drivetrain?
No. The 2025 Audi A4 Premium Plus S line comes with AWD, while the 2025 BMW 3 Series 330i uses RWD. If you drive in snow, heavy rain, or on unpaved roads, the all-wheel or four-wheel drive option provides better traction. If you mostly drive on dry pavement, the two-wheel drive option saves fuel.
How do the warranties compare?
Both offer similar warranty coverage: 4yr/50k bumper-to-bumper and 4yr/50k powertrain.
Explore more: BMW trims, BMW 3 Series trims, Audi trims, Audi A4 trims
How the 3 Series and A4 Stack Up
Two compact cars, two brands, and a decision that comes down to which one fits your commute and budget. The 2025 BMW 3 Series 330i starts at $45,950; the 2025 Audi A4 Premium Plus S line at $48,600. The $2,650 gap is about $47/month on a 60-month loan. Noticeable but not dramatic enough to be the deciding factor on its own.
Powertrain: 3 Series vs A4
Both run the same 2.0L I4 mild-hybrid Turbo engine. The 6 hp difference (261 vs 255) is marginal in daily driving. The 2025 Audi A4 Premium Plus S line comes with AWD; the 2025 BMW 3 Series 330i uses RWD. If you deal with snow, rain, or gravel roads, that traction advantage matters.
What It Actually Costs to Own
The 2025 BMW 3 Series 330i saves roughly $260/year on fuel at $3.50/gallon and 12,000 annual miles. Over five years, that is $1,300. The 2025 BMW 3 Series 330i wins on both sticker price and running costs, making it the stronger value on paper.
Which One Should You Buy?
Choose the 2025 BMW 3 Series 330i when you want to keep $2,650 in your pocket and the 2025 BMW 3 Series 330i covers your needs. Choose the 2025 Audi A4 Premium Plus S line when you drive in snow, rain, or unpaved roads where AWD keeps you planted. At $47/month apart, the price difference alone will not decide this.
Specifications shown combine licensed third-party automotive data with official manufacturer, EPA, and NHTSA source material. Actual pricing, features, and availability may vary by region and dealer. Always confirm details with an authorized dealer before making a purchase decision. TrimAtlas is not affiliated with BMW or Audi or any dealership.