2025 Kia K5 GT-Line vs 2025 Nissan Altima 2.5 SV
On paper, the 2025 Nissan Altima 2.5 SV wins on $860 less. The 2025 Kia K5 GT-Line has to win you at the dealer. Key numbers: 191 vs 182 hp, 27 vs 28 MPG.
The Altima 2.5 SV leads on $860 less. 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 Kia K5 GT-Line | 2025 Nissan Altima 2.5 SV |
|---|---|---|
| Pricing | ||
| MSRP | $29,790 | $28,930 |
| Powertrain | ||
| Engine | 2.5L I4 | 2.5L I4 |
| Horsepower | 191 hp | 182 hp |
| Torque | 181 lb-ft | 178 lb-ft |
| Transmission | 8-speed shiftable automatic | continuously variable-speed automatic |
| Drivetrain | AWD | AWD |
| Fuel Economy | ||
| City MPG | 24 | 25 |
| Highway MPG | 33 | 34 |
| Combined MPG | 27 | 28 |
| Fuel Tank | 15.8 gal | 16.0 gal |
| Annual Fuel Cost (EPA) | $1,600/yr | $1,550/yr |
| Dimensions | ||
| Curb Weight | 3,463 lbs | 3,401 lbs |
| Wheelbase | 112.2" | 111.2" |
| Length | 193.1" | 192.9" |
| Width | 73.2" | 72.9" |
| Height | 56.9" | 57.3" |
| Safety | ||
| NHTSA Overall | 5/5 stars | 5/5 stars |
| Warranty | ||
| Bumper-to-Bumper | 5yr/60k | 3yr/36k |
| Powertrain | 10yr/100k | 5yr/60k |
| Corrosion | 5yr/100k | 5yr/unlimited |
| Roadside Assistance | 5yr/60k | 3yr/36k |
Frequently Asked Questions
What is the price difference between the 2025 Kia K5 GT-Line and 2025 Nissan Altima 2.5 SV?
The 2025 Nissan Altima 2.5 SV starts at $28,930, $860 less than the 2025 Kia K5 GT-Line at $29,790. On a 60-month loan that is roughly $16/month. All prices are MSRP before destination and dealer fees.
Who should choose the 2025 Kia K5 GT-Line?
The 2025 Kia K5 GT-Line is the stronger pick when you prefer the Kia approach to the midsize sedan segment.
Who should choose the 2025 Nissan Altima 2.5 SV?
The 2025 Nissan Altima 2.5 SV is the stronger pick when you want to keep $860 in your pocket and the 2025 Nissan Altima 2.5 SV covers your needs; lower running costs matter to you, roughly $56/year less on fuel.
Which gets better fuel economy, the 2025 Kia K5 GT-Line or 2025 Nissan Altima 2.5 SV?
The 2025 Nissan Altima 2.5 SV rates 28 combined MPG, 1 MPG ahead.
Which is more powerful, the 2025 Kia K5 GT-Line or 2025 Nissan Altima 2.5 SV?
The 2025 Kia K5 GT-Line produces 191 hp, 9 more than the 2025 Nissan Altima 2.5 SV at 182 hp. The 2025 Kia K5 GT-Line also leads in torque at 181 lb-ft vs 178 lb-ft.
Is the 2025 Kia K5 GT-Line bigger than the 2025 Nissan Altima 2.5 SV?
The 2025 Kia K5 GT-Line is 0.2″ longer at 193.1″ vs 192.9″. The 2025 Kia K5 GT-Line has a 1.0″ longer wheelbase, which typically means more rear-seat legroom.
How do the warranties compare?
The Kia K5 comes with 5yr/60k bumper-to-bumper and 10yr/100k powertrain. The Nissan Altima offers 3yr/36k bumper-to-bumper and 5yr/60k powertrain. Longer warranty coverage can offset higher maintenance costs over time.
Explore more: Kia trims, Kia K5 trims, Nissan trims, Nissan Altima trims
- 2025 Kia K5 GT-Line Safety Ratings (NHTSA)
- 2025 Nissan Altima 2.5 SV Safety Ratings (NHTSA)
- Compare Fuel Economy (EPA)
K5 vs Altima: What This Matchup Is Really About
The 2025 Kia K5 GT-Line and 2025 Nissan Altima 2.5 SV are both midsize sedans competing for the same buyer. Price, fuel economy, and daily comfort are the tie-breakers. The $-860 gap is about $16/month on a 60-month loan. Noticeable but not dramatic enough to be the deciding factor on its own.
Under the Hood
Both run the same 2.5L I4 engine. The 9 hp difference (191 vs 182) is marginal in daily driving. Both use AWD.
Running Costs: K5 vs Altima
The 2025 Nissan Altima 2.5 SV saves roughly $56/year on fuel at $3.50/gallon and 12,000 annual miles. Over five years, that is $280.
Bottom Line
Choose the 2025 Kia K5 GT-Line when you prefer the Kia approach to the midsize sedan segment. Choose the 2025 Nissan Altima 2.5 SV when you want to keep $860 in your pocket and the 2025 Nissan Altima 2.5 SV 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 Kia or Nissan or any dealership.