2025 Kia K4 vs 2025 Nissan Altima

$21,990 · Sedan

$27,000 · Sedan

Comparison Overview

Deciding between the newly minted 2025 Kia K4 and the established 2025 Nissan Altima often boils down to balancing immediate savings against superior power. If you're budgeting closely, the K4 starts at a compelling $21,990, a full $5,010 less than the Altima's $27,000 sticker price. This upfront saving makes the K4 immediately attractive for budget-conscious buyers. However, the Altima flexes its muscles with 188 hp and 180 lb-ft of torque, easily outperforming the K4's 147 hp. While the K4 offers slightly better overall efficiency with 34 combined MPG compared to the Altima's 32 MPG, the Altima provides a more substantial physical footprint, being nearly 7.5 inches longer at 192.9 inches versus the K4's 185.4 inches. Ultimately, choosing hinges on whether you prioritize saving money upfront or demanding more horsepower for the daily drive.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Kia K4

The Kia K4 wins for commuters due to its superior fuel economy, achieving 34 combined MPG versus the Altima's 32 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Nissan Altima

The Nissan Altima is better suited for families as it offers slightly more cargo room at 15.4 cu ft compared to the K4's 14.6 cu ft.

🏎️ Best for Enthusiasts

2025 Nissan Altima

Enthusiasts will prefer the Altima because it delivers a significantly higher 188 hp compared to the K4's 147 hp.

💰 Best Value

2025 Kia K4

The Kia K4 is the clear value winner, boasting a $5,010 lower starting MSRP at $21,990.

Choose the Kia K4 if...

You need the lowest possible upfront cost, given the K4 starts at only $21,990.
Maximizing fuel efficiency is your top priority, as the K4 achieves 40 MPG on the highway.
You prefer a slightly more manageable footprint, as the K4 is over 7 inches shorter in length than the Altima.

Choose the Nissan Altima if...

You frequently need more responsive acceleration, thanks to the Altima's 188 hp and 180 lb-ft of torque.
You value slightly more passenger/cargo space, as the Altima provides 15.4 cu ft of cargo capacity.
You prefer the driving dynamics of a slightly larger sedan, evidenced by the Altima's greater overall dimensions.

Key Dimensions

Dimension	Kia K4	Nissan Altima
Length	185.4"	192.9"
Width	72.8"	72.9"
Height	55.9"	56.7"
Wheelbase	107.1"	111.2"

Features Comparison

Safety

Feature	Kia	Nissan
Lane Departure Warning	✓	✓
Lane Keeping Assist System	✓	—
Rear Cross Traffic Alert	✓	✓
Driver Attention Alert	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	—
Dual Front Side-Mounted Airbags	✓	✓
Dual Rear Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Solid Disc Brakes	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	—
Daytime Running Lights	✓	—
Front Headrests	2	2
Front Height Adjustable Headrests	✓	✓
Rear Headrests	3	3
Rear Fixed Headrests	✓	—
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Blind Spot Monitor	—	✓
Brake Preparation System	—	✓

Engine

Feature	Kia	Nissan
Base Engine Displacement	2.0 L	2.5 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	gas	gas
Horsepower	147 hp @ 6200 rpm	188 hp @ 6000 rpm
Torque	132 lb-ft @ 4500 rpm	180 lb-ft @ 3600 rpm
Number of Valves	16	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	—	✓

Drive Train

Feature	Kia	Nissan
Transmission Type	continuously variable-speed automatic	continuously variable-speed automatic
Drivetrain Type	front wheel drive	front wheel drive

Fuel

Feature	Kia	Nissan
Fuel Type	regular unleaded	regular unleaded
EPA Fuel Economy (City/Highway)	30/40 MPG	27/39 MPG
EPA Fuel Economy (Combined)	34 MPG	32 MPG
EPA Driving Range (City/Highway)	372.0/496.0 mi.	437.4/631.8 mi.
Fuel Tank Capacity	12.4 gal.	16.2 gal.

Comfort & Convenience

Feature	Kia	Nissan
Push Button Start	✓	✓
Tilt and Telescopic Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Adaptive Cruise Control	✓	—
Front Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Air Conditioning	✓	✓
Dual Vanity Mirrors	✓	✓
Rear Parking Sensors	—	✓
Cruise Control	—	✓
Rear Cupholders	—	✓
Overhead Console with Storage	—	✓
Front Seatback Storage	—	✓
Interior Air Filtration	—	✓

In Car Entertainment

Feature	Kia	Nissan
Infotainment Display	12.3 in	8.0 in
AM/FM Stereo	✓	✓
Speaker System	4	6
Android Auto (Wireless)	✓	—
Apple CarPlay (Wireless)	✓	—
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	3 months
Android Auto (Wired)	—	✓
Apple CarPlay (Wired)	—	✓
Auxiliary Audio Input	—	✓

Power Feature

Feature	Kia	Nissan
One-Touch Power Windows	1	1
Keyless Entry	✓	—
Heated Mirrors	✓	✓
Remote Keyless Entry	—	✓

Frontseats

Feature	Kia	Nissan
Front Head Room	39.0 in.	39.1 in.
Front Leg Room	42.3 in.	43.8 in.
Front Shoulder Room	56.5 in.	58.2 in.
Front Hip Room	53.3 in.	54.7 in.
Seat Material: Cloth	✓	✓
Front Seat Type: Bucket	✓	✓
Driver Seat Manual Adjustments	6-way	6-way
Driver Seat Height Adjustment	✓	✓
Passenger Seat Manual Adjustments	6-way	4-way
Passenger Seat Height Adjustment	✓	—

Rearseats

Feature	Kia	Nissan
Rear Head Room	37.3 in.	36.9 in.
Rear Leg Room	38.0 in.	35.2 in.
Rear Shoulder Room	54.7 in.	57.1 in.
Rear Hip Room	51.9 in.	54.5 in.
Folding Rear Seatback	✓	—
Split-Folding Rear Seatback	—	✓
Folding Center Armrest	—	✓

Tires and Wheels

Feature	Kia	Nissan
Wheel Material	Steel	Steel
Wheel Cover Type	Full	Full
Wheel Size	16 x 6.5 in	16 x 7.0 in
Tire Type	All Season	All Season
Tire Size	205/55R16	215/60R16
Spare Tire Type	Temporary	Temporary
Spare Tire Location	Inside Mounted	Inside Mounted

Suspension

Feature	Kia	Nissan
Front Suspension Type	Independent	—
Stabilizer Bar	✓	—
Four-Wheel Independent Suspension	—	✓
Front Stabilizer Bar	—	✓
Rear Stabilizer Bar	—	✓

Warranty

Feature	Kia	Nissan
Basic Warranty	5 yr./ 60000 mi.	3 yr./ 36000 mi.
Drivetrain Warranty	10 yr./ 100000 mi.	5 yr./ 60000 mi.
Corrosion/Rust Warranty	5 yr./ 100000 mi.	5 yr./ unlimited mi.
Roadside Assistance	5 yr./ 60000 mi.	3 yr./ 36000 mi.
Complimentary Scheduled Maintenance	—	2 yr./ 24000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Kia K4 and 2025 Nissan Altima.

How much more powerful is the 2025 Nissan Altima than the 2025 Kia K4?

The 2025 Nissan Altima has a distinct power advantage, producing 188 hp, which is 41 hp more than the Kia K4's 147 hp. This translates to better passing power on the highway for the Altima.

Is the price difference between these two sedans significant for an average buyer?

Yes, the price difference is substantial; the Kia K4 starts at $21,990 while the Nissan Altima is priced at $27,000, meaning the K4 saves you $5,010 immediately.

Which car is better for long highway commutes regarding fuel use?

The Kia K4 edges out the Altima slightly for overall fuel economy, achieving 34 combined MPG compared to the Altima's 32 combined MPG. Both use regular unleaded fuel.

Does the size difference affect cargo capacity?

The Altima is physically larger, measuring 192.9 inches long compared to the K4's 185.4 inches, and this results in slightly better storage, offering 15.4 cu ft versus the K4's 14.6 cu ft.