2025 Kia K4 vs 2026 Hyundai Elantra

$21,990 · Sedan

$22,625 · Sedan

Comparison Overview

Choosing between the 2025 Kia K4 and the 2026 Hyundai Elantra often boils down to prioritizing razor-thin margins in efficiency versus initial cost. Both sedans offer nearly identical performance, with both boasting 147 horsepower and 132 lb-ft of torque. However, the Elantra edges out the K4 slightly in fuel economy, achieving a 35 MPG combined versus the K4's 34 MPG combined, with a City MPG advantage of 31 to 30. The base MSRP gap is small, but the K4 starts lower at $21,990 compared to the Elantra's $22,625. While dimensions are extremely similar, the K4 offers marginally more cargo space at 14.6 cubic feet versus the Elantra's 14.2 cu ft. Both utilize FWD and a CVT, making daily driving smooth, but these small disparities dictate who wins where.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Hyundai Elantra

The 2026 Hyundai Elantra wins for commuters due to its slightly superior combined fuel economy of 35 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Kia K4

The 2025 Kia K4 provides marginally more practical utility with 14.6 cu ft of cargo capacity over the Elantra's 14.2 cu ft.

🏎️ Best for Enthusiasts

2025 Kia K4

Since performance is identical, the lower starting MSRP of $21,990 for the K4 makes it the slightly better choice for enthusiasts on a budget.

💰 Best Value

2025 Kia K4

The Kia K4 offers a lower entry price point at $21,990 while providing nearly identical efficiency and slightly more storage.

Choose the Kia K4 if...

You want the lowest initial purchase price, starting at $21,990.
You need the maximum available trunk space, offering 14.6 cubic feet.
You prefer a slightly wider stance at 72.8 inches for presumed in-cabin elbow room.

Choose the Hyundai Elantra if...

Maximizing fuel efficiency is your top priority, boasting 35 MPG combined.
You prioritize city driving efficiency, achieving 31 MPG in urban environments.
You prefer the slightly more compact exterior dimensions, being 0.7 inches narrower than the K4.

Key Dimensions

Dimension	Kia K4	Hyundai Elantra
Length	185.4"	185.4"
Width	72.8"	71.9"
Height	55.9"	55.7"
Wheelbase	107.1"	107.1"

Features Comparison

Safety

Feature	Kia	Hyundai
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	—	✓

Engine

Feature	Kia	Hyundai
Base Engine Displacement	2.0 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	gas	gas
Horsepower	147 hp @ 6200 rpm	147 hp @ 6200 rpm
Torque	132 lb-ft @ 4500 rpm	132 lb-ft @ 4500 rpm
Number of Valves	16	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable

Drive Train

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

Fuel

Feature	Kia	Hyundai
Fuel Type	regular unleaded	regular unleaded
EPA Fuel Economy (City/Highway)	30/40 MPG	31/40 MPG
EPA Fuel Economy (Combined)	34 MPG	35 MPG
EPA Driving Range (City/Highway)	372.0/496.0 mi.	384.4/496.0 mi.
Fuel Tank Capacity	12.4 gal.	12.4 gal.

Comfort & Convenience

Feature	Kia	Hyundai
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	✓	✓
Cruise Control	—	✓

In Car Entertainment

Feature	Kia	Hyundai
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	—
Speed Sensitive Volume Control	—	✓

Power Feature

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

Frontseats

Feature	Kia	Hyundai
Front Head Room	39.0 in.	40.6 in.
Front Leg Room	42.3 in.	42.3 in.
Front Shoulder Room	56.5 in.	56.5 in.
Front Hip Room	53.3 in.	53.4 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	✓	✓
Seat Material: Premium Cloth	—	✓

Rearseats

Feature	Kia	Hyundai
Rear Head Room	37.3 in.	37.3 in.
Rear Leg Room	38.0 in.	38.0 in.
Rear Shoulder Room	54.7 in.	55.6 in.
Rear Hip Room	51.9 in.	50.5 in.
Folding Rear Seatback	✓	✓

Tires and Wheels

Feature	Kia	Hyundai
Wheel Material	Steel	Alloy
Wheel Cover Type	Full	—
Wheel Size	16 x 6.5 in	15 x 6.0 in
Tire Type	All Season	All Season
Tire Size	205/55R16	195/65R15
Spare Tire Type	Temporary	Temporary
Spare Tire Location	Inside Mounted	Inside Mounted

Suspension

Feature	Kia	Hyundai
Front Suspension Type	Independent	Independent
Stabilizer Bar	✓	✓

Warranty

Feature	Kia	Hyundai
Basic Warranty	5 yr./ 60000 mi.	5 yr./ 60000 mi.
Drivetrain Warranty	10 yr./ 100000 mi.	10 yr./ 100000 mi.
Corrosion/Rust Warranty	5 yr./ 100000 mi.	7 yr./ unlimited mi.
Roadside Assistance	5 yr./ 60000 mi.	5 yr./ unlimited mi.

Frequently Asked Questions

Common questions about comparing the 2025 Kia K4 and 2026 Hyundai Elantra.

Which car saves more money on gas between the 2025 K4 and the 2026 Elantra?

The 2026 Hyundai Elantra is the winner for pure fuel savings, posting a 35 MPG combined rating compared to the Kia K4's 34 MPG combined. While the difference is only 1 MPG combined, this translates to marginally fewer fill-ups over a year of driving.

Are the horsepower and torque outputs different between the two sedans?

No, for this generation, the power plants are identical; both the 2025 Kia K4 and the 2026 Hyundai Elantra produce 147 horsepower and 132 lb-ft of torque. Both also use regular unleaded fuel, keeping running costs predictable.

How much bigger is the trunk in the K4 compared to the Elantra?

The 2025 Kia K4 has a slight edge in cargo capacity, measuring 14.6 cubic feet. The 2026 Hyundai Elantra offers 14.2 cubic feet, meaning the K4 can hold an extra 0.4 cubic feet of groceries or luggage.

Is one car significantly larger than the other in overall size?

The dimensions are nearly identical, as both sedans share the exact same length of 185.4 inches. The main difference is width, where the K4 is 72.8 inches wide, making it 0.9 inches wider than the Elantra.

If I am looking for the absolute cheapest option, which should I pick?

The 2025 Kia K4 is the value leader based on the sticker price provided, starting at $21,990. The 2026 Hyundai Elantra starts slightly higher at $22,625, creating a price gap of $635 at the base level.

Do these cars offer different driving dynamics, even if power is the same?

Both utilize a continuously variable-speed automatic transmission and front-wheel drive, suggesting very similar, smooth, and non-engaging driving experiences optimized for efficiency. Any real difference in dynamic feel would stem from suspension tuning, which isn't detailed in these core specs.