The 2026 Kia K4 boasts a fresh, modern design with intuitive technology and everyday drivability in mind. Its streamlined profile, thoughtfully integrated technology, and efficient engine options give the K4 sedan a composed feel suited for daily driving. In this 2026 Kia K4 review from the team at Southlake Kia, explore its amenities, performance specifications, and color choices to help you better see if this compact sedan fits your lifestyle. View our trim-level comparison to see the standard features and equipment of the Kia K4 trims.
Take a look at our new Kia K4 inventory to find your desired trim and color combination. Or, shop from those paired with a competitive finance or lease offer. Schedule an appointment at our Kia dealership in Merrillville, IN, to take the K4 for a test drive and get a firsthand feel for its performance and tech in person. If you have questions, contact us online or by phone at (219) 947-1500, and our specialists will be happy to assist you.
Navigate to a specific research section to learn more:
The exterior of the 2026 Kia K4 showcases modern design with a fastback-style roofline and bold lighting elements. Standard LED lighting, including amber daytime running lights, 16-inch steel wheels, and a smart trunk, refines style and convenience. GT-Line trims add sport-inspired gloss black details and larger wheels for a more dynamic road presence.
Standard exterior features:
Exterior features included on higher trim levels:
The 2026 Kia K4 interior is designed to feel comfortable, intuitive, and easy to live with day to day. Standard features like cloth seating, LED interior lighting, a 12.3-inch infotainment touchscreen with wireless Apple CarPlay® and Android Auto™, and a smart key with remote start provide effortless relaxation and connectivity. Upper trim levels offer premium seat upholstery, heated front seats, dual-zone automatic climate control, a 12.3-inch digital instrument panel, navigation, wireless device charging, and a premium audio system for a sophisticated driving experience.
Standard comfort features:
Comfort features included on higher trim levels:
Optional comfort features:
Standard connectivity and audio tech:
Connectivity and audio tech included on higher trim levels:
The 2026 Kia K4 offers two engine options that balance energetic power and efficiency. The standard 2.0L four-cylinder engine is equipped with front-wheel drive (FWD) and delivers 147 horsepower and strong fuel economy for daily commuting. The GT-Line Turbo trim includes a turbocharged 1.6L four-cylinder engine that produces 190 horsepower and 195 pound-feet of torque for brisk acceleration. Selectable drive modes further enhance the dynamics of the GT-Line Turbo.
View the 2026 K4 engine specifications in the following table:
| Engine | 2.0L four-cylinder | 1.6L turbo four-cylinder |
|---|---|---|
| Horsepower | 147 HP | 190 HP |
| Torque | 132 lb.-ft. | 195 lb.-ft. |
| Drivetrain | FWD | FWD |
| Transmission | Intelligent variable | Eight-speed automatic |
| MPG | 29 city / 39 hwy | 26 city / 33 hwy |
The roomy interior of the 2026 Kia K4 offers seating for five and ample room for both front and rear passengers. Generous legroom measurements, 42.3 inches in the front and 38 inches in the rear, ensure relaxation on every journey, and a well-sized 14.6-cubic-foot trunk adds everyday practicality for errands and travel. The overall length of the K4, coming in at 185.4 inches, makes it well-suited for parking in a garage and tight spaces.
View the 2026 K4 size specifications in the following table:
In the 2026 Kia K4, safety technology is thoughtfully integrated through an array of standard driver assist features. Advanced collision avoidance systems, lane assistance technologies, and adaptive cruise control help keep you aware and confident behind the wheel. Available systems on higher trims offer parking, exiting, and highway-focused driving support. The GT-Line Turbo trims can be equipped with an optional Technology Package consisting of enhanced automatic braking systems, a blind spot monitor, and a surround view monitor with front, rear, and side sensors.
Standard safety features:
Safety features included on higher trim levels:
Optional safety features:
*Starting MSRP
The 2025 Kia K4 is an all-new compact sedan prepared to take on your commutes with confidence. This Kia sedan is filled with modern amenities like a large infotainment display, wireless smartphone connectivity, and top-notch driver assistance systems. For details on features and specifications of the 2025 Kia K4, continue reading through this 2025 Kia K4 review crafted by the team at Southlake Kia.
If you’re intrigued by the first-ever Kia K4, consider our available selection in our inventory and match your favorite model with a finance or lease offer. Next, give our Merrillville, IN, dealership a call at (219) 947-1500 or contact us online to make an appointment for a test drive.
The 2025 Kia K4 is a handsome sedan designed to draw attention. LED lighting is standard so you can illuminate the road ahead and alert drivers behind you. Accessing your trunk is made simple thanks to the smart trunk, which opens automatically when you stand behind it with your smart key. When ice or snow accumulates on your side view mirrors, easily melt it off with the standard heating functionality.
Available Kia K4 exterior features include:
Enter the 2025 Kia K4 and discover a comfortable interior focused on necessities and nice-to-have features. You and your front passenger can enjoy available heated front seats. LED interior lighting outlines your cabin and gives it an indulgent aura. Depending on the trim you select, you have a choice between easy-to-clean cloth, premium cloth, or cloth and SynTex seat upholstery. Turn your vehicle on before entering it thanks to standard remote start.
Available Kia K4 interior features include:
Intuitive technology is the main focus in the 2025 Kia K4. The dashboard is set with a standard 12.3-inch multimedia touchscreen display designed to make accessing your favorite apps quick and easy. Cord-free bliss is yours with standard wireless Apple CarPlay® and Android Auto™, plus you can add a wireless charging pad on the K4 EX trim level. Shuffle through various radio stations with the HD Radio™ or SiriusXM® Satellite Radio capability.
Available Kia K4 technology features include:
Potent fuel economy is one of the defining characteristics of the 2025 Kia K4 engine. It can produce up to 40 highway MPG with its 2.0L four-cylinder engine. The K4 engine is also paired with front-wheel drive (FWD) and an intelligent variable transmission (IVT) for efficient handling. Optimize the perfomance of your new sedan with three different drive modes included with the standard drive mode select. The three drive modes are normal, sport, and my drive.
Kia K4 engine specs are shown in the accompanying table for quick reference.
|
Engine |
2.0L four-cylinder |
|
Horsepower |
147 HP |
|
Torque |
132 lb.-ft. |
|
MPG (City/Hwy) |
30 / 40 |
|
Drivetrain |
FWD |
|
Transmission |
Intelligent variable |
There’s plenty of space inside the 2025 Kia K4 for your passengers. Rear-seat passengers can enjoy up to 38 inches of legroom. The trunk offers up to 14.6 cubic feet of cargo space. Or, you can lower the 60/40 split-folding rear seat in whatever configuration works best for you and your passengers and thus increase the cargo space behind the front seats.
Kia K4 interior dimensions are shown in the accompanying table for you to look at.
|
Passenger Capacity |
Five |
|
Passenger Volume |
98.7 cu.-ft. |
|
Trunk Volume |
14.6 cu.-ft. |
|
Headroom (Front/Rear) |
39 / 37.3 in. |
|
Legroom (Front/Rear) |
42.3 / 38 in. |
There are numerous advanced driver assistance and safety systems available with the 2025 Kia K4, including many standard features. Standard Kia K4 safety systems include a rearview monitor, smart cruise control with stop and go, and forward collision avoidance assist, among others. If you select the Kia K4 LX trim level, blind spot collision avoidance assist, rear cross-traffic collision avoidance assist, and safe exit warning all become available.
Available Kia K4 driver assistance and safety features include:
If you’re interested in learning more about the Kia K4, take a look at our K4 trim-level comparison to explore differences in standard features and performance across the lineup. Additionally, we offer model comparisons so you can see how the K4 stacks up against the competition. If you have questions or would like to arrange a test drive, visit our Kia dealership in Merrillville, IN, or contact us online or by phone at (219) 947-1500 for assistance.