Hyundai Sonata vs Genesis G80
The Genesis G80 is the more efficient of the two: it reaches 97 mpg combined versus 52 mpg for the Hyundai Sonata, a 45 mpg advantage and costs about $450 less per year to fuel.
Across 5 measured categories, the Genesis G80 leads in 4. Figures are EPA test data, not manufacturer claims.
Head-to-head specifications
| Metric | Hyundai Sonata | Genesis G80 |
|---|---|---|
| Best combined MPG | 52 mpg | 97 mpg ✓ |
| Best city MPG | 50 mpg | 105 mpg ✓ |
| Best highway MPG | 56 mpg | 93 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $1,200 | $750 ✓ |
| Lowest CO2 output | 100 g/mi ✓ | 345 g/mi |
| Engines offered | SIDI; Hybrid, SIDI & PFI, SIDI & PFI; with Stop-Start, SIDI & PFI; Stop-Start | SIDI & PFI, SIDI |
| Transmissions | Automatic (AM-S6), Automatic (AM-S8), Automatic (S8) | Automatic (S8), Automatic (A1) |
| Drivetrains | Front-Wheel Drive, All-Wheel Drive | All-Wheel Drive, Rear-Wheel Drive |
| Fuel types | Regular, Regular Gas and Electricity | Premium, Electricity, Regular |
| EPA class | Large Cars | Large Cars |
| Years covered | 2015–2027 | 2017–2027 |
| Configurations on record | 81 | 43 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Sonata vs G80: common questions
Which is better on gas, the Hyundai Sonata or the Genesis G80?
The Genesis G80 is the more efficient of the two: it reaches 97 mpg combined versus 52 mpg for the Hyundai Sonata, a 45 mpg advantage and costs about $450 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Genesis G80 runs about $750 a year in fuel at its most efficient configuration, versus about $1,200 for the Hyundai Sonata — a difference of roughly $450 per year.
What engines do the Sonata and G80 offer?
Hyundai Sonata: SIDI; Hybrid, SIDI & PFI, SIDI & PFI; with Stop-Start, SIDI & PFI; Stop-Start. Genesis G80: SIDI & PFI, SIDI.
Are they in the same vehicle class?
Yes — the EPA classifies both the Hyundai Sonata and the Genesis G80 as Large Cars, so they compete directly.
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Comparison id: hyundai-sonata-vs-genesis-g80