Genesis G80 vs Nissan LEAF: Specs Compared

Also searched as Nissan LEAF vs Genesis G80 specs — both orientations show this same side-by-side comparison.

The Nissan LEAF is the more efficient of the two: it reaches 121 mpg combined versus 97 mpg for the Genesis G80, a 24 mpg advantage and costs about $100 less per year to fuel.

Across 4 measured categories, the Nissan LEAF leads in 4. Figures are EPA test data, not manufacturer claims.

2017–2027

Genesis G80

Large Cars · 43 configurations

97mpg combined (best)
All Genesis G80 specs

2015–2026

Nissan LEAF

Midsize Cars · 26 configurations

121mpg combined (best)
All Nissan LEAF specs

Head-to-head specifications

MetricGenesis G80Nissan LEAF
Best combined MPG97 mpg121 mpg ✓
Best city MPG105 mpg131 mpg ✓
Best highway MPG93 mpg111 mpg ✓
Lowest annual fuel costEPA estimate at 15,000 miles per year$750$650 ✓
Lowest CO2 output345 g/miNot available
Engines offeredSIDI & PFI, SIDINot available
TransmissionsAutomatic (S8), Automatic (A1)Automatic (A1)
DrivetrainsAll-Wheel Drive, Rear-Wheel DriveFront-Wheel Drive
Fuel typesPremium, Electricity, RegularElectricity
EPA classLarge CarsMidsize Cars
Years covered2017–20272015–2026
Configurations on record4326

Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.

Genesis G80 vs Nissan LEAF dimensions and size

The Genesis G80 is 22.8 inches longer than the Nissan LEAF on a wheelbase 12.6 inches longer, and 81.6 lbs heavier. Both clear the roughly 200 inches of usable length in a standard single garage bay.

Genesis G80 versus Nissan LEAF exterior dimensions
DimensionGenesis G80 (2026)Nissan LEAF (2026)Difference
Length196.5 in173.6 in22.8 in
Width (excl. mirrors)75.6 in71.3 in4.3 in
Height57.9 in61.4 in3.5 in
Wheelbase118.5 in105.9 in12.6 in
Curb weight4,295 lbs4,213 lbs82 lbs

Width excludes mirrors; add 8–12 inches for mirrors out. Figures are for the newest model year on record for each vehicle. See both drawn to scale.

Genesis G80 vs Nissan LEAF: what the numbers mean

Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Nissan LEAF 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 Nissan LEAF leads in both cycles — 131 mpg city and 111 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 Genesis G80 is recorded with 2 distinct engine configurations (SIDI & PFI, SIDI), the Nissan LEAF with no. Across 43 recorded Genesis G80 configurations and 26 for the Nissan LEAF, 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 Genesis G80 is offered with All-Wheel Drive, Rear-Wheel Drive, the Nissan LEAF with Front-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 Large Cars and Midsize Cars respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.

G80 vs LEAF: common questions

Which is better on gas, the Genesis G80 or the Nissan LEAF?

The Nissan LEAF is the more efficient of the two: it reaches 121 mpg combined versus 97 mpg for the Genesis G80, a 24 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 Nissan LEAF 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 G80 and LEAF offer?

Genesis G80: SIDI & PFI, SIDI. Nissan LEAF: no engine data on record.

Are they in the same vehicle class?

The EPA classifies the Genesis G80 as Large Cars and the Nissan LEAF as Midsize Cars, so they aren't a like-for-like match on size.

More G80 comparisons

More LEAF comparisons

Comparison id: genesis-g80-vs-nissan-leaf