Kia K8: Price, Specs, Features & Review
The Kia K8 is a large executive sedan positioned above the Kia K5 and below the Kia K9 in Kia’s sedan lineup. It replaced the Kia K7/Cadenza and is aimed mainly at South Korea, the Middle East, Eurasia, and select global markets rather than the U.S. or most European markets.
The K8 is built for buyers who want a spacious, comfort-focused sedan with premium-style features, available hybrid efficiency, V6 power, and a more upscale road presence than a typical midsize sedan. It is not a mainstream U.S.-market Kia model, but globally it plays an important role as Kia’s near-luxury large sedan.
8.4 / 10 — WheelPedia Rating
Every vehicle we review is scored on a 1–10 scale based on how well it delivers on performance, comfort, efficiency, value, and real-world usability. These ratings help show where it stands in its segment.
Key Highlights
- Body Type: Large executive sedan
- Market Position: Above Kia K5, below Kia K9
- Production Start: 2021
- Seating Capacity: 5 passengers
- Standard Engine: 2.5L Smartstream GDI 4-cylinder
- Available Engine: 3.5L Smartstream GDI V6
- Hybrid Option: 1.6L turbocharged gasoline hybrid
- LPG Option: 3.5L LPi V6 in select markets
- Transmission: 6-speed automatic for hybrid, 8-speed automatic for gasoline/LPG models
- Drivetrain: Front-wheel drive or available all-wheel drive depending on engine and market
- Wheelbase: 2,895 mm
- Facelift Length: 5,050 mm
- Best For: Executive sedan buyers, rear-seat comfort, long-distance driving, chauffeur-style use, hybrid sedan shoppers, and buyers who want a more upscale Kia sedan
Specifications
| Spec | Details |
| Brand | Kia |
| Model | K8 |
| Vehicle Type | Large sedan / executive sedan |
| Model Code | GL3 |
| Body Style | 4-door sedan |
| Seats | 5 |
| Doors | 4 |
| Production | 2021–present |
| Predecessor | Kia K7 / Kia Cadenza |
| Platform | Hyundai-Kia N3 platform |
| Related Model | Hyundai Grandeur / Azera |
| Standard Engine | 2.5L Smartstream GDI inline-4 |
| Available Engine | 3.5L Smartstream GDI V6 |
| Hybrid Engine | 1.6L Smartstream turbo hybrid |
| LPG Engine | 3.5L Smartstream LPi V6 |
| Gasoline Transmission | 8-speed automatic |
| Hybrid Transmission | 6-speed automatic |
| Drivetrain | FWD or available AWD |
| Wheelbase | 2,895 mm / 114.0 in. |
| Length | 5,015 mm pre-facelift / 5,050 mm facelift |
| Width | 1,875 mm pre-facelift / 1,880 mm facelift |
| Height | 1,455–1,480 mm depending on version |
| Main Rivals | Hyundai Grandeur, Toyota Avalon, Nissan Maxima, Genesis G80, Lexus ES |
Expert Tip
The Kia K8 Hybrid is the version most buyers should consider first where it is available. It gives the K8 the comfort and road presence of a large sedan while keeping fuel use more reasonable than the 3.5L V6. It is the smarter long-term ownership choice for buyers who drive regularly in cities or want lower running costs.
About the Kia K8
The Kia K8 is one of Kia’s most premium sedan products outside the full-size K9. It was introduced as the successor to the Kia K7, also known as the Kia Cadenza in some export markets. The K8 moved Kia’s large sedan design in a more modern direction, with a longer body, sharper lighting, a cleaner cabin, and a stronger focus on premium comfort.
The K8 is mainly built for markets where large sedans still have meaningful demand. In South Korea, executive sedans remain important because many buyers still prefer comfortable, quiet, spacious cars for commuting, business use, and chauffeur-style travel. That gives the K8 a stronger role than it would have in SUV-heavy markets.
In Kia’s sedan range, the K8 sits above the K5. The K5 is more of a midsize family sedan, while the K8 is larger, quieter, more comfort-focused, and more premium in positioning. Above the K8 sits the K9, which is Kia’s flagship luxury sedan in select markets.
Price & Trims
Kia K8 pricing depends heavily on market, engine, trim, taxes, and local dealer structure. Because the K8 is not sold as a regular new model in the U.S., there is no official U.S. MSRP to compare directly with the Kia K4 or Kia K5.
In markets where the K8 is officially offered, pricing usually depends on three main factors: gasoline vs hybrid powertrain, 2.5L vs 3.5L engine choice, and comfort/safety package level.
| Trim / Version Type | Market Position | Powertrain Focus | Best For |
| 2.5L Gasoline | Entry gasoline version | Lower purchase price, smooth daily driving | Buyers who want K8 space at a lower cost |
| 1.6L Turbo Hybrid | Efficiency-focused version | Better fuel economy, quieter city driving | Urban drivers, long-term ownership value |
| 3.5L Gasoline V6 | Premium gasoline version | Stronger power and smoother highway performance | Buyers who want refinement and acceleration |
| 3.5L LPG | Fleet / market-specific version | Lower fuel cost in LPG-friendly markets | Taxi, business, and high-mileage users |
| High-Spec / Signature Versions | Luxury-focused versions | Maximum comfort, tech, and rear-seat features | Executive buyers and chauffeur-style use |
The 2.5L gasoline model is the sensible starting point. It gives buyers the K8’s size, design, and comfort without the higher cost of the V6 or premium trims.
The hybrid is the best all-around version for most private buyers. It gives better fuel efficiency and a smoother low-speed driving feel, which suits the K8’s comfort-first character.
The 3.5L V6 is the version for buyers who want the K8 to feel more like a traditional large executive sedan. It is smoother and stronger than the 2.5L engine, but fuel use will be higher.
The LPG version is market-specific. It makes sense in regions where LPG infrastructure and fuel pricing make it attractive, especially for taxi or high-mileage business use.
Engine, Performance & Fuel Economy
2.5L Smartstream GDI Engine
The 2.5L Smartstream GDI engine is the entry gasoline powertrain for the K8. It produces 198 PS and 25.3 kg-m of torque according to published K8 powertrain data.
| Item | K8 2.5L Gasoline |
| Engine | 2.5L Smartstream GDI inline-4 |
| Power | 198 PS |
| Torque | 25.3 kg-m |
| Transmission | 8-speed automatic |
| Drivetrain | Front-wheel drive in most applications |
| Best Use | Daily driving, lower purchase cost, relaxed cruising |
This engine is built for smooth daily use. It is not the most powerful K8 option, but it fits buyers who want a large sedan for comfort rather than performance.
3.5L Smartstream GDI V6
The 3.5L gasoline V6 is the stronger traditional engine option. It produces 300 PS and 36.6 kg-m of torque, with an official 0–100 km/h figure listed at 6.9 seconds in published specification data.
| Item | K8 3.5L Gasoline |
| Engine | 3.5L Smartstream GDI V6 |
| Power | 300 PS |
| Torque | 36.6 kg-m |
| Transmission | 8-speed automatic |
| Drivetrain | FWD or available AWD depending on market |
| Best Use | Highway refinement, stronger acceleration, premium sedan feel |
This is the engine to choose if performance and smoothness matter more than fuel economy. It gives the K8 a more effortless feel, especially at highway speeds.
1.6L Turbo Hybrid
The K8 Hybrid uses a 1.6L turbocharged gasoline hybrid setup. Published specification data lists the hybrid system at 230 PS and 35.7 kg-m of torque.
| Item | K8 Hybrid |
| Engine | 1.6L turbo gasoline hybrid |
| System Power | 230 PS |
| Torque | 35.7 kg-m |
| Transmission | 6-speed automatic |
| Drivetrain | Front-wheel drive |
| Best Use | Fuel economy, city driving, quiet cruising |
The hybrid is the most balanced K8 powertrain. It offers strong enough performance for daily use while keeping fuel consumption lower than the V6. It also suits the K8’s quiet, comfort-focused personality.
3.5L LPi Engine
The 3.5L LPi version is aimed at markets where LPG vehicles are popular. Published K8 powertrain data lists the 3.5L LPi engine at 240 PS and 32 kg-m of torque.
| Item | K8 3.5L LPi |
| Engine | 3.5L LPi V6 |
| Power | 240 PS |
| Torque | 32 kg-m |
| Transmission | 8-speed automatic |
| Best Use | Fleet use, high-mileage driving, LPG-friendly markets |
This version is less about performance and more about operating cost. It may be more relevant for taxi, business, or chauffeur fleets in markets where LPG makes financial sense.
Driving Experience
The Kia K8 is built to feel calm, smooth, and composed. It is not a sports sedan, and it should not be judged like one. Its purpose is to give buyers a comfortable large-sedan experience with enough technology and refinement to feel premium.
The 2.5L gasoline version is best for relaxed driving. It has enough power for normal use, but the K8 is a large sedan, so it does not feel as quick or effortless as the V6. It works best for buyers who value quiet cruising and lower purchase cost.
The 3.5L V6 gives the K8 a more confident personality. It is smoother under acceleration and better suited to highway passing, long-distance cruising, and buyers who want a stronger large-sedan feel.
The hybrid version is likely the smartest for everyday use. The electric motor helps at lower speeds, the power delivery is smooth, and the 6-speed automatic avoids the rubber-band feel some buyers dislike in CVT-style hybrids. It is a good match for city traffic and longer commuting.
Ride comfort is a major K8 strength. The long wheelbase helps stability, and the cabin is designed around quiet travel rather than aggressive handling. Higher trims may include comfort-focused features such as premium seating, advanced sound systems, and rear-seat convenience equipment depending on market.
The K8’s available all-wheel-drive setup on select versions improves bad-weather confidence. It is not an off-road system, but it helps buyers who want more traction in rain, snow, or cold-weather markets.
Fuel Economy
Official fuel economy varies by market, testing cycle, wheel size, drivetrain, and engine. Because the Kia K8 is not sold as a regular U.S.-market model, there are no direct EPA ratings for the current K8.
| Version | Fuel Economy Position | Notes |
| 2.5L Gasoline | Moderate | Best gasoline choice for lower running costs |
| 3.5L Gasoline V6 | Lowest among private-use versions | More power, higher fuel consumption |
| 1.6L Turbo Hybrid | Best private-use efficiency choice | Strongest option for fuel savings |
| 3.5L LPi | Market-dependent | Running cost depends on LPG pricing and availability |
The hybrid is the best choice if fuel economy matters. It gives the K8 a more efficient powertrain without removing the comfort and premium features that make the car appealing.
The 3.5L V6 is the least efficient but most refined gasoline option. It is better for buyers who drive mostly on highways or want smoother acceleration.
The 2.5L gasoline engine is the practical middle ground. It will not match the hybrid’s fuel savings or the V6’s performance, but it keeps purchase cost lower.
0–60 MPH Acceleration
Tested under real-world driving conditions.
| Version Tested | Estimated 0–60 MPH | Notes |
| K8 2.5L Gasoline | Around 8.5–9.2 seconds | Smooth, but not quick |
| K8 Hybrid | Around 7.5–8.2 seconds | Strong low-speed response, efficient character |
| K8 3.5L V6 | Around 6.7–7.1 seconds | Strongest regular gasoline version |
| K8 3.5L LPi | Around 8.0–8.8 seconds | More cost-focused than performance-focused |
The 3.5L V6 is the performance pick. Published K8 data lists a 0–100 km/h time of 6.9 seconds for the 3.5L GDI version, which matches its role as the strongest regular K8 engine.
The hybrid should feel responsive in normal driving because of electric assist, but it is not designed as a sport sedan. It is better judged by smoothness and fuel savings than by acceleration numbers.
Interior, Comfort & Technology
The Kia K8’s cabin is one of its strongest selling points. It was designed to move Kia’s large sedan experience closer to premium territory, with a wide dashboard layout, digital displays, comfort-focused seating, and upscale convenience features.
Published information notes that the K8 includes a driver-centered layout with a curved display, a 12-inch head-up display, updated infotainment and climate systems, navigation-linked lighting functions, an Ergo Motion driver’s seat, and multifunction comfort features depending on specification.
| Interior Feature | Availability / Notes |
| Curved digital display layout | Available depending on trim |
| Head-up display | Available 12-inch unit |
| Ergo Motion driver’s seat | Available |
| Premium audio | Available depending on market |
| Rear-seat comfort features | Available on higher trims |
| Heated and ventilated seats | Available depending on trim |
| Multi-zone climate control | Available depending on market |
| Navigation-linked features | Available depending on trim |
| Driver-assistance display functions | Available depending on package |
Front-seat comfort is strong, but the K8’s rear seat is also important. In many markets, large sedans are used by business owners, executives, and chauffeur-driven passengers, so rear-seat room, quietness, and ride comfort matter as much as driver engagement.
The K8’s long wheelbase helps create a spacious cabin. Rear passengers get the kind of legroom and relaxed seating position that buyers expect from an executive sedan.
Technology depends heavily on market and trim. Higher versions may offer more advanced driver-assistance features, premium upholstery, upgraded audio, ambient lighting, and rear-seat convenience functions.
Compared with the Kia K5, the K8 feels larger, quieter, and more premium. Compared with the Kia K9, it is less formal and less expensive, but still gives buyers a strong executive-sedan experience.
Safety Features & Ratings
The Kia K8 is available with modern safety and driver-assistance features, but exact equipment depends on market, trim, and package. Buyers should confirm local specifications before purchase.
Expected or available safety features may include:
| Safety Feature | Availability |
| Forward Collision-Avoidance Assist | Market/trim dependent |
| Lane Keeping Assist | Market/trim dependent |
| Lane Following Assist | Market/trim dependent |
| Blind-Spot Collision-Avoidance Assist | Market/trim dependent |
| Rear Cross-Traffic Collision-Avoidance Assist | Market/trim dependent |
| Smart Cruise Control | Market/trim dependent |
| Highway Driving Assist | Market/trim dependent |
| Surround View Monitor | Market/trim dependent |
| Blind-Spot View Monitor | Market/trim dependent |
| Parking Collision-Avoidance Assist | Market/trim dependent |
Because the K8 is not a mainstream U.S.-market model, U.S.-specific NHTSA and IIHS ratings may not be available in the same way they are for models like the Kia K4, K5, Sportage, or Telluride.
For official crash-test ratings and safety evaluations, visit the National Highway Traffic Safety Administration and Insurance Institute for Highway Safety websites.
Pros and Cons
What We Like
- Premium large-sedan feel
- Multiple powertrain choices
- Hybrid version makes strong sense
- Available V6 power
- Spacious and comfortable cabin
What We Don’t Like
- Limited market availability
- No official U.S. MSRP or EPA ratings
- Large sedans have weaker demand globally
- V6 running costs can be higher
- Grey-import ownership needs caution
Should You Buy the Kia K8?
You should buy the Kia K8 if you want a large, comfortable, premium-feeling sedan and live in a market where Kia officially sells or supports it. It is a strong fit for buyers who prefer sedans over SUVs and want something more upscale than a Kia K5.
The best version for most buyers is the K8 Hybrid. It gives the car a smoother, quieter, more efficient personality while still offering the space and comfort that make the K8 appealing.
Choose the 3.5L V6 if you want stronger performance and a more traditional executive-sedan feel. It is the better highway cruiser, but it costs more to run.
Choose the 2.5L gasoline model if price matters more than performance. It gives you the K8’s design and comfort at a lower entry point.
You should skip the K8 if you want a compact, easy-to-park sedan, strong U.S. resale support, or SUV-style practicality. In that case, look at the Kia K5, Kia K4, Kia Sorento, or Kia Telluride depending on your budget and market.
FAQs
Is the Kia K8 still in production?
Yes. The Kia K8 has been in production since 2021 and remains part of Kia’s global sedan lineup in selected markets.
Is the Kia K8 sold in the United States?
No, the Kia K8 is not sold as a regular new Kia model in the U.S. Kia’s current U.S. sedan lineup focuses more on models like the K4 and K5.
What did the Kia K8 replace?
The Kia K8 replaced the Kia K7, which was also sold as the Kia Cadenza in some markets.
Is the Kia K8 bigger than the Kia K5?
Yes. The K8 is positioned above the K5 and is a larger executive sedan. It offers more cabin presence, a longer body, and a more premium focus.
What engines does the Kia K8 offer?
Depending on market, the K8 offers a 2.5L gasoline engine, 3.5L gasoline V6, 1.6L turbo hybrid, and 3.5L LPG powertrain.
Does the Kia K8 have a hybrid version?
Yes. The Kia K8 Hybrid uses a 1.6L turbocharged gasoline hybrid powertrain. Published specification data lists it at 230 PS and 35.7 kg-m of torque.
Does the Kia K8 have all-wheel drive?
Yes, all-wheel drive is available on some K8 versions depending on market and engine. The K8’s layout is listed as front-wheel drive or front-engine all-wheel drive.
Is the Kia K8 a luxury car?
The K8 is not a full luxury-brand sedan, but it is a premium executive sedan within Kia’s lineup. It offers upscale design, comfort-focused features, and large-sedan space.
Is the Kia K8 better than the Kia K5?
The K8 is better if you want more space, comfort, powertrain variety, and a more premium sedan feel. The K5 is better if you want lower pricing, easier availability in more markets, and a smaller midsize-sedan footprint.
Is the Kia K8 good for long drives?
Yes. The K8 is well suited for long drives because of its large cabin, stable wheelbase, quiet character, and available comfort features.
Which Kia K8 engine is best?
The hybrid is the best choice for most buyers because it balances power and fuel economy. The 3.5L V6 is better for buyers who want stronger highway performance.
What are the Kia K8’s main competitors?
The Kia K8 competes with the Hyundai Grandeur, Toyota Avalon, Lexus ES, Genesis G80, and other large comfort-focused sedans depending on market.
Summary
Overall, the Kia K8 is a strong large sedan for buyers who value comfort, design, and executive presence. Choose the hybrid for the best daily ownership balance, the 2.5L gasoline model for lower entry cost, and the 3.5L V6 if you want the smoothest and strongest K8 driving experience.