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AudiA3 Sportback Plug-in Hybrid (2021-)

Available new
Medium
Plug-in hybrid (PHEV)
2024 update

£39,855Typical price

Test score

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The Audi A3 Sportback is now in its fourth generation, and in addition to petrol and diesel models, a plug-in hybrid is available. Badged TFSI e, the Audi A3 Sportback Plug-In Hybrid is claimed to do more than 800mpg. But can it achieve this in the real world? Find out in our full Audi A3 Sportback Plug-In Hybrid review.

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What's included?

What is it?
What’s it like to drive?
How reliable is the Audi A3 Sportback Plug-in Hybrid (2021 to present)?
How comfortable and spacious is it?
How economical is it to run?
How safe is it?
Is there anything I should look out for?
Should I buy it?

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

Sept 2025First reviewed by Which?
Sept 2020Released

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

How we test cars

27 Aug 2025

Ease of driving

Overall
Visibility
Smoothness of power delivery
Driving stability
Cabin layout

Performance

Overall
In-gear acceleration
Brakes

Comfort and practicality

Overall
Entry and exit
Seat comfort
Ride quality
Quietness
Seat space
Boot space (small SUVs and medium cars)

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
Class	Medium
Luxury	No
Convertible	No
Availability	Available new
New price	£39,885 - £48,855
Fuel type	Plug-in hybrid (PHEV)
Tested fuel efficiency	807.1mpg
Length	4,352mm
Width (excluding wing mirrors)	1,816mm
Width (including wing mirrors)	1,990mm
Height	1,441mm
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	11.05 m
On sale date	29 September 2020
Model years tested	2024 update
Lowest pence-per-mile cost	£8.26

Latest tested engine
Engine and trim name	40 TFSI e
Fuel type	Plug-in-Petrol-Hybrid
Capacity and power	1.5-litre (204hp)
Transmission	6-speed dual-clutch automatic
Driven wheels	Front-wheel-drive (FWD)
Fuel tank capacity	40 litres
Tested fuel economy: City / Out of town / Motorway (mpg)
Tested fuel efficiency (mi/kWh)
Tested fuel economy: Combined (mpg)
Cost per mile	8.26p per mile
Cost of filling tank	£54
Monthly fuel cost
Annual fuel cost
NOx level	Extremely Low (trace)
CO level	Low
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	8
Tested electric-only range (miles)
Official fuel economy: WLTP	53 to 57.9
Braked tow load (KG)	1400kg
Unbraked tow load (KG)	750kg
Engine test date	13 August 2025
Test programme	2017

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AudiA3 Sportback Plug-in Hybrid (2021-)

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