If you're in the market for a premium compact SUV, two German contenders stand head and shoulders above many rivals: the Audi Q3 and the Mercedes-Benz GLA-Class. Both offer the desirable high driving position, a prestigious badge, and a cabin packed with technology, but they go about their business in subtly different ways.
The Audi Q3 plays to the brand's traditional strengths, with sharp, angular styling and an interior that exudes quality and clever design. The Mercedes-Benz GLA, on the other hand, is a sleeker, more curvaceous machine that prioritises comfort and showcases some of the most advanced in-car tech in the class. With both available with efficient engines, which of these upmarket SUVs is the right fit for you?
Audi Q3 vs Mercedes-Benz GLA-Class
- Practicality
- Driving Impressions
- Technology and Equipment
- Running Costs
- CarGurus Buyer Insights
- Verdict
Practicality
Audi Q3 practicality score: 3/5
Mercedes-Benz GLA-Class practicality score: 3/5
For compact SUVs, both the Q3 and GLA offer reasonable space, but one has a clear advantage. The Audi Q3 is one of the most practical cars in its class, thanks to a sliding rear bench that lets you choose between maximising legroom or boot space. With the seats pushed forward, the boot is a generous 530 litres, which is plenty for family holidays.
The Mercedes GLA is a little more style-focused, and that has an impact on interior space. The boot is noticeably smaller than the Audi's at 435 litres, and while there's enough room for four adults to sit comfortably, it feels a bit tighter in the back than the Q3. Neither car is hugely spacious, but if carrying luggage is a priority, the Audi's flexible and larger boot gives it the edge.
Driving Impressions
Audi Q3 driving score: 3/5
Mercedes-Benz GLA-Class driving score: 4/5
On the road, the differing priorities of these two cars become clear. The Mercedes GLA is tuned for comfort, with suspension that does a good job of soaking up bumps and making long journeys feel relaxed. It handles neatly and feels secure, striking a good balance that will suit most buyers. It feels less like a tall SUV and more like a slightly raised family hatchback.
The Audi Q3 feels solid and dependable, but it can't quite match the GLA's ride comfort. On anything other than smooth roads, and particularly on the larger wheels fitted to S line models, the ride can feel a bit firm and fidgety. It handles safely and predictably, but it's not as engaging or as comfortable as the Mercedes. For the daily grind and motorway cruises, the GLA's more cosseting nature makes it the more pleasant companion.
Technology and Equipment
Audi Q3 technology and equipment score: 4/5
Mercedes-Benz GLA-Class technology and equipment score: 4/5
Both Audi and Mercedes are leaders when it comes to in-car tech, so it's no surprise that this is a close-fought battle. The Audi Q3 comes as standard with the brand's excellent Virtual Cockpit digital driver's display and a slick central touchscreen. The system is logical and easy to navigate, and the overall build quality feels robust.
The Mercedes GLA, however, delivers more wow-factor. Most models feature a stunning widescreen display that combines two screens under a single pane of glass. The MBUX infotainment system can be controlled by touch, a touchpad, or by voice using the "Hey Mercedes" command. While some may find the Audi's system a little more intuitive to use at first, the GLA's flashy setup feels a generation ahead and gives the cabin a genuinely high-tech ambience.
Running Costs
Audi Q3 running costs score: 4/5
Mercedes-Benz GLA-Class running costs score: 4/5
As premium models, neither the Q3 nor the GLA will be the cheapest cars to run, but they can be surprisingly affordable. Both are available as plug-in hybrids (the Q3 TFSI e and the GLA 250 e), which offer an electric-only range of over 30 miles. For company car drivers, this means low Benefit-in-Kind tax bills, and for private owners with a home charger, it could mean petrol-free commuting.
The conventional petrol and diesel engines also offer decent fuel economy for this class of car. Both cars hold their value well, which helps to keep long-term ownership costs and monthly finance payments in check. There's very little to separate the two here; both offer a similar range of efficient powertrains and will have comparable day-to-day running costs.
CarGurus Buyer Insights
| Audi Q3 Review (2018-2025) | Mercedes-Benz GLA-Class Review (2020-present) | |
|---|---|---|
| CarGurus expert rating | 4 out of 5 | 4 out of 5 |
| CarGurus user rating | 4.1 out of 5 | 4.5 out of 5 |
| Percentage of good/great deals available on CarGurus* | 34.0% | 32.4% |
| Overall CarGurus rating | 4.3 out of 5 | 4.4 out of 5 |
The Verdict
Audi Q3 Overall CarGurus rating: 4.3/5
Mercedes-Benz GLA-Class Overall CarGurus rating: 4.4/5
This is an incredibly close contest between two very desirable premium SUVs. The Audi Q3 makes a strong case for itself with its high-quality cabin and superior practicality, thanks to its larger, more flexible boot. It feels like a solid, well-engineered product.
However, it's the Mercedes-Benz GLA-Class that takes the narrow win here, based on our comprehensive CarGurus ratings. While our experts rate them equally, the GLA scores significantly higher with owners, earning a 4.5 out of 5 user rating compared to the Q3's 4.1. This, combined with its more comfortable ride and impressive in-car technology, is enough to give it the edge. The GLA simply feels more special and relaxing to spend time in. If you value practicality above all else, the Q3 is a fine choice, but as an overall package, the Mercedes-Benz GLA is the more compelling buy.
Audi Q3 Pros and Cons
| Pros | Cons |
|---|---|
| High-quality, premium interior | Ride can be firm on larger wheels |
| Flexible rear seats and large boot | Less engaging to drive than GLA |
| User-friendly infotainment system | Design is more conservative |
Mercedes-Benz GLA-Class Pros and Cons
| Pros | Cons |
|---|---|
| Comfortable and composed ride | Smaller boot than the Audi Q3 |
| Stylish interior with impressive MBUX tech | Some interior materials don't feel as solid as the Audi's |
| Efficient plug-in hybrid option | MBUX system can be distracting to use on the move |
*The Overall CarGurus rating: that informs these recommendations is based on CarGurus' proprietary market data from January 2026, CarGurus expert reviews, and CarGurus user reviews.