The 2025 KIA K4 is an all-new compact sedan that replaces the Forte in KIA’s lineup. With its bold design, updated features, and advanced technology, this model aims to set new standards in its segment. Whether you’re looking for KIA K4 specs on performance, interior space, fuel economy, or trim options, this guide will break down everything you need to know.
Exterior Design & Dimensions
The 2025 KIA K4 features a sportier and more refined exterior than its predecessor. It adopts a fastback-inspired silhouette, giving it a sleek, aerodynamic profile. The front fascia proudly showcases KIA’s iconic “Tiger Nose” grille, enhanced by striking LED headlights and vibrant daytime running lights for a stunning look.
Key Exterior Specs:
- Length: 185.4 inches
- Width: 72.8 inches
- Height: 56.9 inches
- Wheelbase: 111.0 inches
- Ground Clearance: 5.3 inches
The K4 is larger than the Forte, providing a more spacious cabin and a confident road presence. The KIA K4 trims include unique design elements, with the KIA K4 GT line featuring sportier accents like gloss black detailing and exclusive alloy wheels.
Interior & Cargo Space
Inside, the KIA K4 interior is designed for comfort and technology integration. The spacious cabin offers 38 inches of rear legroom, making it one of the roomiest options in the compact sedan category. KIA has also incorporated premium materials, soft-touch surfaces, and synthetic leather upholstery that is available for a refined feel.
Technology & Features:
- 12.3-inch Touchscreen Display (Standard)
- Wireless Apple CarPlay® & Android Auto™
- Digital Instrument Cluster
- Available Bose® Premium Audio System
- Dual-Zone Automatic Climate Control
- Smart Key with Push-Button Start
Cargo Space:
- Trunk Capacity: 14.2 cubic feet
- 60/40 Split-Folding Rear Seats for additional storage
With its KIA K4 interior, the sedan delivers a tech-focused, user-friendly experience catering to daily commuters and long-distance drivers.
Performance & Engine Options
The 2025 KIA K4 offers two engine choices, catering to different driving preferences.
Base Engine (LX, LXS, EX Trims)
- Engine: 2.0-liter 4-cylinder
- Horsepower: 147 hp
- Torque: 132 lb-ft
- Transmission: Continuously Variable Transmission (CVT)
- Drivetrain: Front-Wheel Drive (FWD)
This engine prioritizes efficiency and smooth performance, making it an excellent option for urban driving.
Turbocharged Engine (GT-Line Turbo, GT)
- Engine: 1.6-liter Turbocharged 4-cylinder
- Horsepower: 190 hp
- Torque: 195 lb-ft
- Transmission: 8-speed Automatic
- Drivetrain: Front-Wheel Drive (FWD)
The KIA K4 GT line and GT trims provide a more engaging drive with sport-tuned suspension and paddle shifters.
Fuel Economy & 0-60 MPH Performance
KIA has designed the 2025 KIA K4 to be fuel-efficient while maintaining a balance of power.
Estimated Fuel Economy:
- 2.0L Engine: 30 MPG city / 41 MPG highway
- 1.6L Turbo Engine: 28 MPG city / 37 MPG highway
Acceleration (0-60 MPH):
- 2.0L Engine: 8.5 seconds
- 1.6L Turbo Engine: 7.0 seconds
The KIA K4 horsepower figures ensure a well-rounded driving experience, with the turbocharged option providing extra power for highway merging and spirited driving.
Trim Levels & Configurations
The 2025 KIA K4 trims offer a range of options to suit different driver needs.
Available Trims:
- KIA K4 LX – Base trim with essential features, including a digital instrument cluster and wireless smartphone connectivity.
- KIA K4 EX – Focuses on comfort, with available leather seating and premium tech.
- KIA K4 GT-Line – Sporty design, larger wheels, and an aggressive exterior look.
- KIA K4 LXS – Adds upgraded interior materials and enhanced safety features.
- KIA K4 GT-Line Turbo – Includes a turbocharged engine, performance upgrades, and advanced tech.
Each trim level offers unique styling and technology enhancements, allowing buyers to customize their configurations for the 2025 KIA K4 based on their needs.
Is the KIA K4 Electric?
No, the 2025 KIA K4 is not an electric vehicle. However, KIA continues to expand its EV lineup with models like the EV6 and EV9. The K4 remains a gas-powered sedan, prioritizing fuel efficiency and affordability.
KIA’s hybrid and EV options provide choices in the lineup for those interested in electric models.
Safety & Driver Assistance Features
KIA has equipped the 2025 KIA K4 with advanced safety features to enhance driver confidence.
Standard Safety Features:
- Forward Collision-Avoidance Assist
- Smart Cruise Control with Stop & Go (Available)
- Lane Keeping & Lane Following Assist
- Blind-Spot Collision-Avoidance Assist (Available)
- Driver Attention Warning
- Rear Occupant Alert
These safety technologies ensure that the K4 remains a reliable and secure option for daily driving.
Is the KIA K4 Replacing the Forte?
Yes, the KIA K4 replacing the Forte marks a shift in KIA’s compact sedan lineup. The Forte has been a staple in KIA’s offerings for years, but the K4 introduces a new design language, upgraded technology, and a stronger feature set.
For those looking for a pre-owned KIA Forte, check out Turner KIA’s used Forte inventory.
How Does the KIA K4 Compare to the KIA K5?
The KIA K4 vs. KIA K5 specs comparison reveals distinct differences between the two sedans:
| Feature | KIA K4 | KIA K5 |
| Engine Options | 2.0L & 1.6L Turbo | 1.6L & 2.5L Turbo |
| Horsepower | Up to 190 hp | Up to 290 hp |
| Drivetrain | FWD | FWD & AWD |
| Technology | 12.3-inch touchscreen | 10.25-inch touchscreen |
| Cargo Space | 14.2 cu ft | 16.0 cu ft |
While the K4 is a compact sedan, the K5 offers more power and a larger build, making it better suited for those wanting extra performance.
Pricing & Availability
The 2025 KIA K4 is competitively priced, making it an attractive option for sedan buyers.
Estimated Starting Prices:
- K4 LX: $23,000
- K4 LXS: $24,00
- K4 EX: $27,700
- K4 GT-Line: $27,400
- K4 GT-Line Turbo: $32,000
Final Thoughts
The 2025 KIA K4 brings a refreshed design, upgraded interior, and improved performance compared to the outgoing Forte. With multiple KIA K4 trims, advanced safety features, and fuel-efficient engine options, this sedan is a strong contender in its segment.For those interested in test-driving the KIA K4 or exploring financing options, visit Turner KIA or check out our latest inventory today.
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Warranties include 10-year/100,000-mile powertrain and 5-year/60,000-mile basic. All warranties and roadside assistance are limited. See retailer for warranty details.