2025 Kia K5 GT vs 2025 Nissan Altima 2.5 SR
108 more hp and 133 more lb-ft torque vs $2,960 less and AWD. That is the real fork. Key numbers: 290 vs 182 hp, 27 vs 28 MPG.
The K5 GT leads on 108 more hp, 133 more lb-ft torque. The Altima 2.5 SR leads on $2,960 less, AWD. The spec table compares 7 specifications head to head.
Key Differences at a Glance
What's Actually Different
These two vehicles differ in 7 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 | 2025 Nissan Altima 2.5 SR |
|---|---|---|
| Pricing | ||
| MSRP | $33,290 | $30,330 |
| Powertrain | ||
| Engine | 2.5L I4 Turbo | 2.5L I4 |
| Horsepower | 290 hp | 182 hp |
| Torque | 311 lb-ft | 178 lb-ft |
| Transmission | 8-speed automated manual | continuously variable-speed automatic |
| Drivetrain | FWD | AWD |
| Fuel Economy | ||
| City MPG | 23 | 25 |
| Highway MPG | 33 | 34 |
| Combined MPG | 27 | 28 |
| Fuel Tank | 15.8 gal | 16.0 gal |
| Annual Fuel Cost (EPA) | No published data | $1,550/yr |
| Dimensions | ||
| Curb Weight | 3,596 lbs | 3,442 lbs |
| Wheelbase | 112.2" | 111.2" |
| Length | 193.1" | 192.9" |
| Width | 73.2" | 72.9" |
| Height | 56.9" | 57.4" |
| 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 and 2025 Nissan Altima 2.5 SR?
The 2025 Nissan Altima 2.5 SR starts at $30,330, $2,960 less than the 2025 Kia K5 GT at $33,290. On a 60-month loan that is roughly $52/month. All prices are MSRP before destination and dealer fees.
Who should choose the 2025 Kia K5 GT?
The 2025 Kia K5 GT is the stronger pick when the extra 108 hp matters for your commute or driving style.
Who should choose the 2025 Nissan Altima 2.5 SR?
The 2025 Nissan Altima 2.5 SR is the stronger pick when you want to keep $2,960 in your pocket and the 2025 Nissan Altima 2.5 SR covers your needs; lower running costs matter to you, roughly $56/year less on fuel; you drive in snow, rain, or unpaved roads where AWD keeps you planted.
Which gets better fuel economy, the 2025 Kia K5 GT or 2025 Nissan Altima 2.5 SR?
The 2025 Nissan Altima 2.5 SR rates 28 combined MPG, 1 MPG ahead.
Which is more powerful, the 2025 Kia K5 GT or 2025 Nissan Altima 2.5 SR?
The 2025 Kia K5 GT produces 290 hp, 108 more than the 2025 Nissan Altima 2.5 SR at 182 hp. The 2025 Kia K5 GT also leads in torque at 311 lb-ft vs 178 lb-ft. The 2025 Kia K5 GT runs a 2.5L I4 Turbo; the 2025 Nissan Altima 2.5 SR uses a 2.5L I4. Drivetrains differ too: FWD on the 2025 Kia K5 GT, AWD on the 2025 Nissan Altima 2.5 SR.
Is the 2025 Kia K5 GT bigger than the 2025 Nissan Altima 2.5 SR?
The 2025 Kia K5 GT is 0.2″ longer at 193.1″ vs 192.9″. The 2025 Kia K5 GT has a 1.0″ longer wheelbase, which typically means more rear-seat legroom.
Do the 2025 Kia K5 GT and 2025 Nissan Altima 2.5 SR have the same drivetrain?
No. The 2025 Nissan Altima 2.5 SR comes with AWD, while the 2025 Kia K5 GT uses FWD. 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?
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 Safety Ratings (NHTSA)
- 2025 Nissan Altima 2.5 SR Safety Ratings (NHTSA)
- Compare Fuel Economy (EPA)
How the K5 and Altima Stack Up
Two midsize sedans, two brands, and a decision that comes down to which one fits your commute and budget. The 2025 Kia K5 GT starts at $33,290; the 2025 Nissan Altima 2.5 SR at $30,330. The $-2,960 gap adds up to $52/month on a 60-month loan. That is real money, so the pricier option needs to earn it with capabilities you will actually use.
Powertrain: K5 vs Altima
The 2025 Kia K5 GT runs a 2.5L I4 Turbo; the 2025 Nissan Altima 2.5 SR uses a 2.5L I4. The 2025 Kia K5 GT has 108 more hp (290 vs 182). You will feel the difference merging, passing, and driving with a full car. The 2025 Kia K5 GT adds 133 more lb-ft of torque (311 vs 178), giving it stronger low-end pull off the line. The 2025 Nissan Altima 2.5 SR comes with AWD; the 2025 Kia K5 GT uses FWD. If you deal with snow, rain, or gravel roads, that traction advantage matters.
What It Actually Costs to Own
The 2025 Nissan Altima 2.5 SR saves roughly $56/year on fuel at $3.50/gallon and 12,000 annual miles. Over five years, that is $280.
Which One Should You Buy?
Choose the 2025 Kia K5 GT when the extra 108 hp matters for your commute or driving style. Choose the 2025 Nissan Altima 2.5 SR when you want to keep $2,960 in your pocket and the 2025 Nissan Altima 2.5 SR 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.