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GenesisG80 (2021-2025)

Large
Petrol/Diesel/Mild hybrid
Used only

£30,217Typical price

Test score

where to buy or sell

The version of this car that we've reviewed might not be available to buy through all listed retailer links. For more options, see our guides on where to buy a car and how to sell a car.

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Genesis is Korean car maker Hyundai’s luxury spin-off brand – and it looked to make a real statement with its G80 in the large saloon class. Faced with rivals like the Audi A6, BMW 5 Series, Jaguar XF, Mercedes E-class and Volvo S90, it clearly has a major task on its hands. Is it up to the job? Find out in our full Genesis G80 review.

pros

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cons

What's included?

What is it?
What's it great at?
What's it like to drive?
How reliable are Genesis cars?
How comfortable and spacious is it?
How economical is it to run?
How safe is it?
Should I buy it?

KEY TEST RESULTS
Comfort and practicality

Apr 2025Last checked by Which?
Mar 2022First reviewed by Which?
Jul 2021Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test cars

6 Jun 2025

Ease of driving

Overall
Visibility
Smoothness of power delivery
Driving stability
Cabin layout

How we test ease of driving

To find out how easy a car is to drive, we assess cars across a number of areas from visibility and handling to the layout of the cabin and how smoothly the engine delivers its power.

Performance

Overall
In-gear acceleration
Brakes

How we test performance

We test braking distances and whether the effectivess of the brakes fade with repeat use. Performanc is based on in-gear acceleration.

Comfort and practicality

Overall
Entry and exit
Seat comfort
Ride quality
Quietness
Seat space
Boot space (large cars, SUVs and MPVs)

How we test comfort and practicality

Comfort and practicality includes how easy it is, or not, to get in and out of the car and the maximum height of occupants. We also measure road, wind and engine noise and assess how well the car deals with bumps from large potholes to jittery surfaces like cobble stones.

Euro NCAP

How we test euro ncap

Any car that receives a rating of two stars or less from Euro NCAP is made a Don't Buy. Any car that receives three stars can't be a Best Buy. If a car has been available for more than four years and has not been tested by Euro NCAP, it cannot be a Best Buy.

Safety kit

How we test safety kit

We factor in the safety equipment that’s factory-fitted or optional, along with how well the car protects its occupants and pedestrians in the event of an accident. We also test how easy it is to fit a variety of child car seats.

General
Class	Large
Luxury	Yes
Convertible	No
Availability	Used only
Used price	£30,217 - £44,312
Fuel type	Petrol/Diesel/Mild hybrid
Tested fuel efficiency	30.1mpg
Length	4,995mm
Width (excluding wing mirrors)	1,925mm
Width (including wing mirrors)	2,120mm
Height	1,465mm
Driver max height
Second-row passenger max height
Boot space with seats up
Boot space with seats down
Number of seats	5
Folding rear seats	No
Isofix attachments	Yes
Turning circle	12.5 m
On sale date	01 July 2021
Lowest pence-per-mile cost	£20.23

Latest tested engine
Engine and trim name	2.5T Luxury AWD Automatic
Fuel type	Petrol
Capacity and power	2.5-litre (304hp)
Transmission	8-speed automatic
Driven wheels	Four-wheel-drive (4WD)
Fuel tank capacity	65 litres
Tested fuel economy: City / Out of town / Motorway (mpg)
Tested fuel economy: Combined (mpg)
Cost per mile	20.23p per mile
Cost of filling tank	£87
Monthly fuel cost
Annual fuel cost
NOx level	Very low
CO level	Extremely High
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	214
Official fuel economy: WLTP	30.5 to 31.2
Official Euro emission level	Euro 6d
Engine test date	08 December 2021
Test programme	2017

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GenesisG80 (2021-2025)

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pros

cons

What's included?

How we test cars

Ease of driving

Performance

Comfort and practicality

Euro NCAP

Safety kit

How this product's score compares with other new and used cars we've tested

Suggested Alternatives

BMW

Mercedes-Benz

BMW

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GenesisG80 (2021-2025)

where to buy or sell

pros

cons

What's included?

Test results

Specifications

Best Buys & Don't Buys

Suggested Alternatives

BMW

Mercedes-Benz

BMW

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