2018 head-to-head · Large Car
2018 Hyundai Sonata vs Kia Cadenza
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · 3.3L 6-cyl · 8-speed automatic · 23 MPG
The 2018 Hyundai Sonata is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,500 a year to fuel (31 MPG), versus $2,022 for the 2018 Kia Cadenza (23 MPG). That's roughly $522 a year, or about $2,609 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Hyundai Sonata
- Kia Cadenza
Side by side
| Hyundai Sonata | Kia Cadenza | |
|---|---|---|
| $1,500 | Your annual fuel cost | $2,022 |
| 31 MPG | Combined efficiency | 23 MPG |
| 28 MPG | City | 20 MPG |
| 37 MPG | Highway | 28 MPG |
| 106 cu ft | Passenger volume | 108 cu ft |
| 16 cu ft | Cargo volume | 16 cu ft |
| 284 g/mi | Tailpipe CO₂ (g/mi) | 383 g/mi |
| 7/10 | EPA fuel economy score | 5/10 |
| 7/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 1.6L 4-cyl turbo | Engine / motor | 3.3L 6-cyl |
| 7-speed dual-clutch | Transmission | 8-speed automatic |
| FWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Hyundai Sonata vs Kia Cadenza across model years
- Hyundai Sonata
- Kia Cadenza
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 31 2018 large cars, the Hyundai Sonata ranks 7th and the Kia Cadenza 13th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Hyundai Sonata or the 2018 Kia Cadenza?
Measured by cost to drive, the Hyundai Sonata. The Hyundai Sonata is rated 31 MPG combined and the Kia Cadenza 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Hyundai Sonata vs. the Kia Cadenza per year?
At 15,000 miles a year with $3.10/gal regular gas, about $1,500 for the Hyundai Sonata and $2,022 for the Kia Cadenza.
Hyundai Sonata vs Kia Cadenza in other years
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