2026 Hyundai Sonata SE vs 2026 Kia K5 LXS
On paper, the 2026 Hyundai Sonata SE wins on 2 MPG better. The 2026 Kia K5 LXS has to win you at the dealer. Key numbers: $40 price gap, 191 vs 191 hp, 32 vs 30 MPG.
The Sonata SE leads on 2 MPG better. The spec table compares 3 specifications head to head.
Key Differences at a Glance
What's Actually Different
These two vehicles differ in 3 specifications.
Full Specification Comparison
Specifications and pricing reflect available data as of early 2026 and may not match current manufacturer figures. Always confirm details with an authorized dealer before making a purchase decision.
| Spec | 2026 Hyundai Sonata SE | 2026 Kia K5 LXS |
|---|---|---|
| Pricing | ||
| MSRP | $27,450 | $27,490 |
| Powertrain | ||
| Engine | 2.5L I4 | 2.5L I4 |
| Horsepower | 191 hp | 191 hp |
| Torque | 181 lb-ft | 181 lb-ft |
| Transmission | 8-speed shiftable automatic | 8-speed shiftable automatic |
| Drivetrain | FWD | FWD |
| Fuel Economy | ||
| City MPG | 28 | 26 |
| Highway MPG | 38 | 37 |
| Combined MPG | 32 | 30 |
| Fuel Tank | 15.9 gal | 15.8 gal |
| Annual Fuel Cost (EPA) | No published data | $1,450/yr |
| Dimensions | ||
| Curb Weight | 3,232 lbs | 3,230 lbs |
| Wheelbase | 111.8" | 112.2" |
| Length | 193.3" | 193.1" |
| Width | 73.2" | 73.2" |
| Height | 56.9" | 56.9" |
| Safety | ||
| NHTSA Overall | 5/5 stars | 5/5 stars |
| IIHS Award | TSP+ | No published data |
| Warranty | ||
| Bumper-to-Bumper | 5yr/60k | 5yr/60k |
| Powertrain | 10yr/100k | 10yr/100k |
| Corrosion | 7yr/unlimited | 5yr/100k |
| Roadside Assistance | 5yr/unlimited | 5yr/60k |
Frequently Asked Questions
What is the price difference between the 2026 Hyundai Sonata SE and 2026 Kia K5 LXS?
The 2026 Hyundai Sonata SE starts at $27,450, $40 less than the 2026 Kia K5 LXS at $27,490. That gap is small enough that monthly payments are nearly identical. Focus on which vehicle fits your life, not the sticker.
Who should choose the 2026 Hyundai Sonata SE?
The 2026 Hyundai Sonata SE is the stronger pick when you want to keep $40 in your pocket and the 2026 Hyundai Sonata SE covers your needs; lower running costs matter to you, roughly $88/year less on fuel.
Who should choose the 2026 Kia K5 LXS?
The 2026 Kia K5 LXS is the stronger pick when you prefer the Kia approach to the midsize sedan segment.
Which gets better fuel economy, the 2026 Hyundai Sonata SE or 2026 Kia K5 LXS?
The 2026 Hyundai Sonata SE rates 32 combined MPG, 2 MPG ahead.
Which is more powerful, the 2026 Hyundai Sonata SE or 2026 Kia K5 LXS?
Both produce 191 hp.
Is the 2026 Hyundai Sonata SE bigger than the 2026 Kia K5 LXS?
The 2026 Hyundai Sonata SE is 0.2″ longer at 193.3″ vs 193.1″. The 2026 Kia K5 LXS has a 0.4″ longer wheelbase, which typically means more rear-seat legroom.
How do the warranties compare?
Both offer similar warranty coverage: 5yr/60k bumper-to-bumper and 10yr/100k powertrain.
Explore more: Hyundai trims, Hyundai Sonata trims, Kia trims, Kia K5 trims
- 2026 Hyundai Sonata SE Safety Ratings (NHTSA)
- 2026 Kia K5 LXS Safety Ratings (NHTSA)
- Compare Fuel Economy (EPA)
Sonata vs K5: What This Matchup Is Really About
The 2026 Hyundai Sonata SE and 2026 Kia K5 LXS are both midsize sedans competing for the same buyer. Price, fuel economy, and daily comfort are the tie-breakers. The $40 price gap works out to less than $10/month on a typical loan, so the cost difference is negligible. Pick on fit, not on price.
Under the Hood
Both run the same 2.5L I4 engine. Both produce 191 hp. Both use FWD.
Running Costs: Sonata vs K5
The 2026 Hyundai Sonata SE saves roughly $88/year on fuel at $3.50/gallon and 12,000 annual miles. Over five years, that is $440.
Bottom Line
Choose the 2026 Hyundai Sonata SE when you want to keep $40 in your pocket and the 2026 Hyundai Sonata SE covers your needs. Choose the 2026 Kia K5 LXS when you prefer the Kia approach to the midsize sedan segment.
Specifications shown combine licensed third-party automotive data with official manufacturer, EPA, and NHTSA source material. Actual pricing, features, and availability may vary by region and dealer. Always confirm details with an authorized dealer before making a purchase decision. TrimAtlas is not affiliated with Hyundai or Kia or any dealership.