The 2025 Kia K4 GT-Line is here to shake up the compact sedan segment. Replacing the outgoing Forte, the K4 brings a sportier exterior, a tech-forward interior, and a compelling mix of comfort and performance. With a range of trims and powertrains, Kia is aiming to make the K4 a standout choice for buyers seeking style, value, and advanced features—all wrapped up in a sleek, modern package.
Exterior and Design
Bold, Athletic Stance
The 2025 Kia K4 GT-Line immediately grabs attention with its dynamic fastback profile and modern, angular lines. The front end is dominated by Kia’s signature star-map LED lighting, giving the sedan a distinctive nighttime presence. Projector-style LED headlights and fog lights, along with hidden rear door handles, add to its premium look. GT-Line models ride on sporty 18-inch alloy wheels, and the blacked-out trim and red interior accents available on higher trims further enhance its sporty appeal.
Standout Features
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Star-map LED lighting: Front and rear signature lighting
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Projector-style LED headlights and fog lights
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18-inch sport alloy wheels
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Hidden rear door handles
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Ultra-wide panoramic sunroof (GT-Line Turbo)
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Red interior accents on select trims
Interior and Comfort
Spacious and Stylish Cabin
Inside, the K4 GT-Line offers a surprisingly roomy environment for a compact sedan. The class-leading 38 inches of second-row legroom ensures comfort for all passengers, and the trunk provides 15 cubic feet of cargo space—ample for this segment. The cabin design is clean and linear, with a driver-focused dashboard and a mix of physical buttons and digital interfaces for easy operation.
Tech and Connectivity
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12.3-inch digital instrument cluster and infotainment screen (dual 12.3-inch displays on upper trims)
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Wireless Apple CarPlay and Android Auto
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Wireless smartphone charging
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Bose or Harman Kardon premium audio (depending on trim)
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Heated and ventilated front seats
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Digital Key 2.0 for smartphone access
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Remote start and climate control
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Over-the-air updates and voice control integration (Amazon Alexa, Google Home)
Performance and Drive
Powertrain Options
The K4 GT-Line is available with two main engine options:
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Base: 2.0-liter naturally aspirated inline-4, producing 147 horsepower and 132 lb-ft of torque, paired with a CVT (Continuously Variable Transmission).
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GT-Line Turbo: 1.6-liter turbocharged inline-4, generating 190 horsepower and 195 lb-ft of torque, mated to an 8-speed automatic transmission.
Driving Dynamics
The GT-Line Turbo delivers a spirited driving experience, reaching 0-60 mph in just 7.3 seconds. The sport-tuned multi-link rear suspension helps keep the car composed through corners, while the responsive steering and well-weighted brakes inspire confidence. Fuel economy for the base engine is impressive at 30 mpg city and 40 mpg highway, while the GT-Line Turbo returns 26 mpg city and 36 mpg highway—still competitive for its class.
Safety and Driver Assistance
Comprehensive Safety Suite
Kia has equipped the K4 GT-Line with an extensive list of driver assistance features, including:
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Forward Collision-Avoidance Assist with Pedestrian Detection
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Lane Keeping Assist and Lane Following Assist
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Blind-Spot Collision-Avoidance Assist
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Rear Cross-Traffic Collision Avoidance
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Highway Driving Assist 2
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360-degree surround view monitor and blind-spot view monitor (upper trims)
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Smart Cruise Control with Stop & Go
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Up to 29 collision-avoidance and driver assist features
These systems work together to provide peace of mind on every journey.
2025 Kia K4 GT-Line Specifications Table
| Feature | K4 GT-Line Turbo | K4 Base (2.0L) |
|---|---|---|
| Engine | 1.6L Turbocharged Inline-4 | 2.0L Naturally Aspirated |
| Horsepower | 190 hp @ 6000 rpm | 147 hp |
| Torque | 195 lb-ft @ 1700 rpm | 132 lb-ft |
| Transmission | 8-speed Automatic | CVT |
| Drivetrain | Front-Wheel Drive | Front-Wheel Drive |
| 0-60 mph | 7.3 seconds | Not tested |
| EPA MPG (City/Highway) | 26/36 | 30/40 |
| Wheelbase | 107.1 in | 107.1 in |
| Length | 185.4 in | 185.4 in |
| Width | 72.8 in | 72.8 in |
| Height | 55.9 in | 55.9 in |
| Curb Weight | 3285 lbs | ~3100 lbs (est.) |
| Cargo Volume | 15 cu-ft | 15 cu-ft |
FAQs
Q: What is the price of the 2025 Kia K4 GT-Line?
A: The base price for the GT-Line Turbo is around $29,245, with as-tested models reaching $31,445.
Q: Does the Kia K4 GT-Line have wireless charging and Apple CarPlay?
A: Yes, both wireless charging and wireless Apple CarPlay/Android Auto are standard.
Q: What safety features does the Kia K4 GT-Line offer?
A: The K4 GT-Line offers up to 29 driver-assist features, including forward collision avoidance, lane keeping, blind-spot monitoring, and more.
