BMW i4 vs Genesis G80: Specs Compared
Also searched as Genesis G80 vs BMW i4 specs — both orientations show this same side-by-side comparison.
The BMW i4 is the more efficient of the two: it reaches 120 mpg combined versus 97 mpg for the Genesis G80, a 23 mpg advantage and costs about $100 less per year to fuel.
Across 4 measured categories, the BMW i4 leads in 4. Figures are EPA test data, not manufacturer claims.
Head-to-head specifications
| Metric | BMW i4 | Genesis G80 |
|---|---|---|
| Best combined MPG | 120 mpg ✓ | 97 mpg |
| Best city MPG | 122 mpg ✓ | 105 mpg |
| Best highway MPG | 119 mpg ✓ | 93 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $650 ✓ | $750 |
| Lowest CO2 output | Not available | 345 g/mi |
| Engines offered | Not available | SIDI & PFI, SIDI |
| Transmissions | Automatic (A1) | Automatic (S8), Automatic (A1) |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive, 4-Wheel Drive | All-Wheel Drive, Rear-Wheel Drive |
| Fuel types | Electricity | Premium, Electricity, Regular |
| EPA class | Subcompact Cars | Large Cars |
| Years covered | 2022–2026 | 2017–2027 |
| Configurations on record | 33 | 43 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
BMW i4 vs Genesis G80: what the numbers mean
Running cost over five years: at the EPA's 15,000-mile-a-year assumption the BMW i4 burns about $650 of fuel annually against $750 for the Genesis G80. That $100 yearly gap compounds to roughly $500 over five years and $800 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.
City and highway economy: the BMW i4 leads in both cycles — 122 mpg city and 119 mpg highway against 105 and 93 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.
Powertrain choice: the BMW i4 is recorded with no distinct engine configurations, the Genesis G80 with 2 (SIDI & PFI, SIDI). Across 33 recorded BMW i4 configurations and 43 for the Genesis G80, the wider the engine spread the more the real-world fuel efficiency depends on which version you actually buy, so check the specific model year and drivetrain rather than the headline number.
Drivetrain and class: the BMW i4 is offered with All-Wheel Drive, Rear-Wheel Drive, 4-Wheel Drive, the Genesis G80 with All-Wheel Drive, Rear-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Subcompact Cars and Large Cars respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.
i4 vs G80: common questions
Which is better on gas, the BMW i4 or the Genesis G80?
The BMW i4 is the more efficient of the two: it reaches 120 mpg combined versus 97 mpg for the Genesis G80, a 23 mpg advantage and costs about $100 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the BMW i4 runs about $650 a year in fuel at its most efficient configuration, versus about $750 for the Genesis G80 — a difference of roughly $100 per year.
What engines do the i4 and G80 offer?
BMW i4: no engine data on record. Genesis G80: SIDI & PFI, SIDI.
Are they in the same vehicle class?
The EPA classifies the BMW i4 as Subcompact Cars and the Genesis G80 as Large Cars, so they aren't a like-for-like match on size.
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Comparison id: bmw-i4-vs-genesis-g80