Used 2021 Audi A3 for sale nationwide
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Overview

The original A3 was a bit of a pioneer as a classy compact family hatchback – it was much more accomplished than the smallest offerings from BMW and Mercedes, and much posher than the likes of the Ford Focus. The 2021 Audi A3, however, is a little less impressive – talented rivals in the form of the BMW 1 Series and Mercedes A-Class are every bit as good. That said, the Audi A3 is still a smart, classy proposition inside and out, is good to drive and offers impressive levels of safety equipment – although all that does come at a price.
Strengths:
Lots of luxury and safety kit
Very good to drive
Practical enough for a small family
Weaknesses:
Expensive for a car of this size
Not as well finished as some rivals
There's a firm edge to the ride
Is the 2021 Audi A3 better than the 2021 Mercedes A-Class?
The 2021 Mercedes A-Class delivers a bit more premium bling on the inside thanks to its smart circular air vents, flat twin-screen infotainment set-up and snazzy ambient lighting, but the Audi isn’t far behind, with hi-tech screens for both infotainment and the driver’s instrument panel, but it’s a bit less sci-fi than in the Mercedes.
Relevant articles

BMW 1 Series vs Audi A3: Which is better?
In this comparison of the BMW 1 Series and Audi A3 we evaluate practicality, driving dynamics, technology and running costs, and offer an overall verdict as to which is the best buy.

Audi A3 vs Audi Q2: Which is better?
Compare the practicality, driving impressions, technology, equipment, and running costs of the Audi A3 Mk4 and Audi Q2 premium hatchback and crossover.

Audi A3 vs Audi Q3: Which is better?
Compare the practical Audi A3 hatchback against the stylish Audi Q3 SUV to see which premium model best suits your needs.
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Stephen H
Reviewed a 2021 Audi A3 on 17 Jan 2026
Love this car, comfy, modern and sporty. Love driving it and would buy it again in a heartbeat
2021 Audi A3 Variants
| Variant type | MSRP |
|---|---|
| 40 Tfsi E Sport 5dr S Tronic | £35,570 |
| 30 Tdi Technik 5dr | £26,480 |
| 30 Tfsi S Line 5dr | £29,315 |
| 30 Tfsi S Line 5dr S Tronic | £30,865 |
| 30 Tfsi Sport 5dr | £27,035 |
| 35 Tfsi S Line 5dr | £30,880 |
| 40 Tfsi E S Line 5dr S Tronic | £37,850 |
| 35 Tfsi S Line 5dr S Tronic | £32,430 |
2021 Audi A3 price trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 Audi A3 prices has changed over time.
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