Genesis G70 vs Nissan Maxima: Specs Compared

Also searched as Nissan Maxima vs Genesis G70 specs — both orientations show this same side-by-side comparison.

The Genesis G70 and Nissan Maxima are evenly matched on fuel economy — both peak at 25 mpg combined — so the decision comes down to engine choice, drivetrain, and class.

Across 2 measured categories, the Genesis G70 leads in 2. Figures are EPA test data, not manufacturer claims.

2019–2027

Genesis G70

Compact Cars · 35 configurations

25mpg combined (best)
All Genesis G70 specs

2016–2023

Nissan Maxima

Midsize Cars · 8 configurations

25mpg combined (best)
All Nissan Maxima specs

Head-to-head specifications

MetricGenesis G70Nissan Maxima
Best combined MPG25 mpg25 mpg
Best city MPG22 mpg22 mpg
Best highway MPG31 mpg ✓30 mpg
Lowest annual fuel costEPA estimate at 15,000 miles per year$3,050$3,050
Lowest CO2 output357 g/mi ✓363 g/mi
Engines offeredSIDI & PFI, SIDI3.5
TransmissionsAutomatic (S8), Manual 6-spdAutomatic (AV-S7)
DrivetrainsRear-Wheel Drive, All-Wheel DriveFront-Wheel Drive
Fuel typesPremiumPremium
EPA classCompact CarsMidsize Cars
Years covered2019–20272016–2023
Configurations on record358

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

Genesis G70 vs Nissan Maxima dimensions and size

The Nissan Maxima is 8.7 inches longer than the Genesis G70 on a wheelbase 2.4 inches shorter, and 339.5 lbs lighter. Both clear the roughly 200 inches of usable length in a standard single garage bay.

Genesis G70 versus Nissan Maxima exterior dimensions
DimensionGenesis G70 (2026)Nissan Maxima (2025)Difference
Length184.3 in192.9 in8.7 in
Width (excl. mirrors)72.8 in73.2 in0.4 in
Height55.1 in56.7 in1.6 in
Wheelbase111.8 in109.4 in2.4 in
Curb weight3,926 lbs3,587 lbs340 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 G70 vs Nissan Maxima: what the numbers mean

Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Genesis G70 burns about $3,050 of fuel annually against $3,050 for the Nissan Maxima. That $0 yearly gap compounds to roughly $0 over five years and $0 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 versus highway split: the Nissan Maxima is the stronger commuter at 22 mpg city, while the Genesis G70 pulls ahead on the interstate at 31 mpg highway. If most of your driving is stop-and-go traffic the city figure is the one to weigh; for long-distance highway mileage the reverse is true, and the two vehicles effectively swap places depending on how you drive.

Powertrain choice: the Genesis G70 is recorded with 2 distinct engine configurations (SIDI & PFI, SIDI), the Nissan Maxima with 1 (3.5). Across 35 recorded Genesis G70 configurations and 8 for the Nissan Maxima, 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 G70 is offered with Rear-Wheel Drive, All-Wheel Drive, the Nissan Maxima 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 Compact Cars and Midsize Cars respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.

Tailpipe emissions: at their cleanest configurations the Genesis G70 emits 357 g/mile of CO2 versus 363 g/mile for the Nissan Maxima. Emissions track fuel consumption almost exactly, so the cleaner vehicle here is also the cheaper one to fuel.

G70 vs Maxima: common questions

Which is better on gas, the Genesis G70 or the Nissan Maxima?

The Genesis G70 and Nissan Maxima are evenly matched on fuel economy — both peak at 25 mpg combined — so the decision comes down to engine choice, drivetrain, and class.

Which costs less to run per year?

By EPA estimates at 15,000 miles a year, the Nissan Maxima runs about $3,050 a year in fuel at its most efficient configuration, versus about $3,050 for the Genesis G70 — a difference of roughly $0 per year.

What engines do the G70 and Maxima offer?

Genesis G70: SIDI & PFI, SIDI. Nissan Maxima: 3.5.

Are they in the same vehicle class?

The EPA classifies the Genesis G70 as Compact Cars and the Nissan Maxima as Midsize Cars, so they aren't a like-for-like match on size.

More G70 comparisons

More Maxima comparisons

Comparison id: genesis-g70-vs-nissan-maxima