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BMWiX (2021-)

Available new
Large SUV
Electric
2021 model + 2025 update tested

£66,005Typical price

Test score

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The iX is BMW’s range-topping electric SUV. It was launched in 2021 and updated in 2025 with improved driving range, more powerful electric motors and larger batteries. But is this SUV viable as an everyday car? We’ve lab-tested pre and post-update models to find out.

pros

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cons

What's included?

What is it?
What’s it like to drive?
What’s the performance like?
How reliable is the BMW iX (2021-)?
How comfortable and spacious is it?
How economical is it to run?
How safe is it?
Should I buy it?

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KEY TEST RESULTS
Comfort and practicality
Model reliability 0-4 years
Brand reliability 0-4 years

May 2026Last checked by Which?
May 2022First reviewed by Which?
Nov 2021Released

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

A blue Volkswagen ID.4 maneuvering around orange traffic cones on a test track, with a grassy hill in the background.

How we test cars

3 Feb 2026

Ease of driving

Overall
Visibility
Smoothness of power delivery
Driving stability
Cabin layout

Driving performance

Overall
Acceleration
Gearbox and transmission
Brakes

Comfort and practicality

Overall
Entry and exit
Seat comfort
Ride quality
Quietness
Build quality
Seat space
Boot space

Euro NCAP

Safety kit

Model reliability 0-4 years

How we test model reliability 0-4 years

How reliable this car is, based on the real life feedback of current owners as collected in our annual Which? car survey. We divide all reliability feedback into three age groups: cars aged up to four years, five to nine years, and 10 to 15 years. A car cannot be a Best Buy if: It's available to buy new and has a 0-4-year model reliability score of two stars or less; or it's only available on the used market and has a 5-9-year model reliability score of two stars or less; or it's only available on the used market and launched less than five years ago and has a 0-4-year model reliability score of two stars of less.

Brand reliability 0-4 years

Overall
Electric car reliability
Plug-in hybrid reliability
Petrol reliability
Diesel reliability

How we test brand reliability 0-4 years

Our reliability ratings are based on the feedback from tens of thousands of UK motorists, as collected in our annual Which? car survey. We divide all reliability feedback into three age groups: cars aged up to four years, five to nine years, and 10 to 15 years.

Brand reliability 5-9 years

Overall
Plug-in hybrid reliability
Diesel reliability

Brand reliability 10-15 years

Overall
Petrol reliability
Diesel reliability

General
Car body style	Full-size SUV
Size and body style	Large SUV
Class	Medium/Large SUV
Luxury	Yes
Convertible	No
Availability	Available new
New price	£66,005 - £92,946
Fuel type	Electric
Tested fuel efficiency	2.95 to 3.04mi/kWh
Length	4,953 to 4,965mm
Width (excluding wing mirrors)	1,967 to 1,970mm
Width (including wing mirrors)	2,240mm
Height	1,695 to 1,696mm
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	Yes
Isofix attachments	Yes
Turning circle	12.2 m
On sale date	01 November 2021
Model years tested	2021 model + 2025 update tested
Lowest pence-per-mile cost	£8.10

Latest tested engine
Engine and trim name	xDrive45
Fuel type	Electric
Transmission	Single-speed automatic
Driven wheels	Four-wheel-drive (4WD)
Tested fuel efficiency (mi/kWh)
Cost per mile	8.4p per mile
Monthly fuel cost
Annual fuel cost
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	0
Tested electric range (miles)
Official Euro emission level	Electric - N/A
Braked tow load (KG)	2500kg
Unbraked tow load (KG)	750kg
Test programme	2026

Engine two
Engine and trim name	xDrive50
Fuel	Electric
Transmission	Single-speed automatic
Driven wheels	Four-wheel-drive (4WD)
Tested fuel efficiency (mi/kWh)
Cost per mile	8.1p per mile
Monthly fuel cost
Annual fuel cost
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	0
Tested electric range (miles)
Official Euro emission level	Electric - N/A
Braked tow load (KG)	2500kg
Unbraked tow load (KG)	750kg
Car test programme	2017-2025

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BMWiX (2021-)

where to buy or sell