2025 Nissan Altima 2.5 S vs 2025 Mazda 3 2.5 S
9.4″ longer vs $2,850 less. That is the real fork. Key numbers: 188 vs 191 hp, 31 vs 31 MPG.
The Altima 2.5 S leads on 9.4″ longer. The 3 2.5 S leads on $2,850 less. The spec table compares 4 specifications head to head.
Key Differences at a Glance
What's Actually Different
These two vehicles differ in 4 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 Nissan Altima 2.5 S | 2025 Mazda 3 2.5 S |
|---|---|---|
| Pricing | ||
| MSRP | $27,000 | $24,150 |
| Powertrain | ||
| Engine | 2.5L I4 | 2.5L I4 |
| Horsepower | 188 hp | 191 hp |
| Torque | 180 lb-ft | 186 lb-ft |
| Transmission | continuously variable-speed automatic | 6-speed shiftable automatic |
| Drivetrain | FWD | FWD |
| Fuel Economy | ||
| City MPG | 27 | 27 |
| Highway MPG | 38 | 37 |
| Combined MPG | 31 | 31 |
| Fuel Tank | 16.2 gal | 13.2 gal |
| Annual Fuel Cost (EPA) | $1,400/yr | No published data |
| Dimensions | ||
| Curb Weight | 3,253 lbs | 3,124 lbs |
| Wheelbase | 111.2" | 107.3" |
| Length | 192.9" | 183.5" |
| Width | 72.9" | 70.7" |
| Height | 56.7" | 56.9" |
| Safety | ||
| NHTSA Overall | 5/5 stars | No published data |
| IIHS Award | No published data | TSP+ |
| Warranty | ||
| Bumper-to-Bumper | 3yr/36k | 3yr/36k |
| Powertrain | 5yr/60k | 5yr/60k |
| Corrosion | 5yr/unlimited | 5yr/unlimited |
| Roadside Assistance | 3yr/36k | 3yr/36k |
Frequently Asked Questions
What is the price difference between the 2025 Nissan Altima 2.5 S and 2025 Mazda 3 2.5 S?
The 2025 Mazda 3 2.5 S starts at $24,150, $2,850 less than the 2025 Nissan Altima 2.5 S at $27,000. On a 60-month loan that is roughly $50/month. All prices are MSRP before destination and dealer fees.
Who should choose the 2025 Nissan Altima 2.5 S?
The 2025 Nissan Altima 2.5 S is the stronger pick when the 2025 Nissan Altima 2.5 S is more fuel-efficient for a lower-cost commute.
Who should choose the 2025 Mazda 3 2.5 S?
The 2025 Mazda 3 2.5 S is the stronger pick when you want to keep $2,850 in your pocket and the 2025 Mazda 3 2.5 S covers your needs.
Which gets better fuel economy, the 2025 Nissan Altima 2.5 S or 2025 Mazda 3 2.5 S?
Both achieve 31 combined MPG, so fuel cost is not a factor in this decision.
Which is more powerful, the 2025 Nissan Altima 2.5 S or 2025 Mazda 3 2.5 S?
The 2025 Mazda 3 2.5 S produces 191 hp, 3 more than the 2025 Nissan Altima 2.5 S at 188 hp. The 2025 Mazda 3 2.5 S also leads in torque at 186 lb-ft vs 180 lb-ft.
Is the 2025 Nissan Altima 2.5 S bigger than the 2025 Mazda 3 2.5 S?
The 2025 Nissan Altima 2.5 S is 9.4″ longer at 192.9″ vs 183.5″. The 2025 Nissan Altima 2.5 S has a 3.9″ longer wheelbase, which typically means more rear-seat legroom.
How do the warranties compare?
Both offer similar warranty coverage: 3yr/36k bumper-to-bumper and 5yr/60k powertrain.
Explore more: Nissan trims, Nissan Altima trims, Mazda trims, Mazda 3 trims
- 2025 Nissan Altima 2.5 S Safety Ratings (NHTSA)
- 2025 Mazda 3 2.5 S Safety Ratings (NHTSA)
- Compare Fuel Economy (EPA)
The Altima–3 Decision
Shopping midsize sedans means the Altima and 3 will likely end up on the same test-drive day. Here is what the numbers say before you get behind the wheel. The $-2,850 gap adds up to $50/month on a 60-month loan. That is real money, so the pricier option needs to earn it with capabilities you will actually use.
What Powers Each Vehicle
Both run the same 2.5L I4 engine. The 3 hp difference (191 vs 188) is marginal in daily driving. Both use FWD.
The Ownership Math
Annual fuel costs are nearly identical, so running costs will not separate these two.
The Decision
Choose the 2025 Nissan Altima 2.5 S when the 2025 Nissan Altima 2.5 S is more fuel-efficient for a lower-cost commute. Choose the 2025 Mazda 3 2.5 S when you want to keep $2,850 in your pocket and the 2025 Mazda 3 2.5 S covers your needs.
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 Nissan or Mazda or any dealership.