2025 Nissan Altima vs 2025 Kia K5 front view

2025 Nissan Altima vs 2025 Kia K5

When comparing the Nissan Altima and Kia K5, you’ll note that these models are fiercely competitive, always neck-in-neck with their specifications, including dimensions, fuel economy, and power output. Below, you can see just how closely matched these two sedans are. The Altima can be found here at Matt Castrucci Nissan in Dayton, OH.  

View our Nissan Altima inventory
Contact us

Nissan Altima vs Kia K5 fuel economy*

One place where the Nissan Altima has a slight edge is fuel economy, so if saving on fuel is a major priority, you might want to choose the Altima. With 27 mpg in the city and 39 mpg on the highway, the Altima S FWD edges out the Kia K5 LXS FWD, which offers 26 mpg in the city and 37 mpg on the highway.

Nissan Altima vs Kia K5 dimensions and capacities

You may wonder how much these sedans differ in size. Truthfully, they’re very similar in dimensions and capacities, and they even have the same fuel tank capacity of 16 gallons. The chart below breaks down specific size specifications for the Nissan Altima and Kia K5. 

Model 

2025 Nissan Altima S FWD 

2025 Kia K5 LXS FWD 

Fuel tank 

16 gallons 

16 gallons 

Exterior length 

192.9 inches 

193.1 inches 

Exterior width 

72.9 inches 

73.2 inches 

Exterior height 

56.7 inches 

56.9 inches 

Interior cargo volume 

15.4 cubic feet 

15.6 cubic feet 

Nissan Altima vs Kia K5 performance and handling

Both of these models feature 2.5 L I-4 engines and standard front-wheel drive. They vary just slightly in power outputs, with the Nissan Altima S FWD offering 188 horsepower and 180 pound-feet of torque, while the Kia K5 offers 191 horsepower and 181 pound-feet of torque. The Nissan Altima offers a CVT (Continuously Variable Transmission), while the K5 has an 8-speed automatic.  

Which sedan should you get: the Nissan Altima or the Kia K5?

In this comparison, we’ve compared two lower trim levels with very similar starting prices. Overall, you can see that both sedans have a lot to offer, which makes the decision difficult. We recommend test-driving both cars for a fair comparison. Visit Matt Castrucci Nissan to find Nissan Altima cars for sale in Dayton, OH.

Disclaimer

* 2025 EPA Fuel Economy Estimates. 27 City MPG / 39 Highway MPG / 32 Combined MPG for Altima® S, SV FWD. 27 City MPG / 37 Highway MPG / 31 Combined MPG for Altima® SR, SL FWD. 25 City MPG / 34 Highway MPG / 28 Combined MPG for Altima® SV, SR, SL AWD. Actual mileage may vary with driving conditions. Use for comparison only.

2025 Nissan Altima on a road overhead view
Interested in this new Nissan?