Used Audi A3 for sale near Cardiff

CarGurus expert rating: 4 out of 5
CarGurus user rating: 4.4 out of 5
Percentage of good/great deals available on CarGurus: 34.2%
Overall CarGurus rating:* 4.4 out of 5
Available Listings: Around 2,500
Average Price: Around £16,800

Audi A3 Mk4 (2020-present) Pros and Cons

Pros	Cons
Lots of luxury and safety kit	Expensive for a car of this size
Very good to drive	Not as well finished as some rivals
Practical enough for a small family	There's a firm edge to the ride

Quick Summary

The Audi A3 Mk4 (2020-present) is a premium five-door hatchback that maintains Audi's competitive position in the prestige compact car segment. With a 380-litre boot expanding to 1,200 litres with rear seats folded, it offers practicality comparable to larger rivals. The car features a well-appointed interior with a 10.1-inch touchscreen, 10.25-inch Virtual Cockpit digital display, and comprehensive safety equipment including automatic emergency braking and lane departure warning. A 2024 facelift introduced styling refinements and additional technology enhancements.

The A3 delivers an engaging driving experience with responsive steering, strong grip, and tight body control, though the ride has a noticeably firm edge. Turbocharged petrol engines achieve around 50mpg, whilst diesel variants exceed 60mpg. Running costs align with BMW 1 Series and Mercedes A-Class equivalents, though the A3 commands a slight premium. Despite not advancing significantly from its predecessor, the A3 remains a desirable, well-equipped, and entertaining car to drive, justifying its position amongst the prestige hatchback elite.

Best for: Buyers seeking a premium, well-equipped hatchback with strong driving dynamics, luxury features, and practical space for small families. Not ideal for: Budget-conscious buyers, those prioritising softer ride comfort, or those seeking the most spacious compact hatchback available.
Comparison vs Key Rivals



The Verdict

You should buy the A3 if: You seek a premium, well-equipped hatchback with strong driving dynamics, luxury features, and practical space for small families. Consider alternatives if: You prioritise budget affordability, softer ride comfort, or require the most spacious compact hatchback available. Competitive Position: The Audi A3 Mk4 remains a highly competitive prestige hatchback, matching the BMW 1 Series and Mercedes A-Class for desirability, style, technology, and practicality. Whilst it commands a slight price premium and may not feel as refined as some rivals, the A3 justifies its cost through comprehensive luxury kit, engaging driving dynamics, and strong overall execution. The Volkswagen Golf offers greater spaciousness and user satisfaction at a lower price point, making it an excellent alternative for those prioritising value. The A3 is the ideal choice for buyers who value premium badge appeal and sophisticated engineering alongside practical everyday usability. Read our full Audi A3 Review

*The Overall CarGurus rating: that informs these recommendations is based on CarGurus' proprietary market data from March 2026, CarGurus expert reviews, and CarGurus user reviews.