Compare performance (507 HP vs 354 HP), boot space and price (70,600 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Audi Q7 or Mercedes GLB?
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
In the world of luxury SUVs, two heavyweights dominate the conversation—Audi's Q7 and Mercedes-Benz's GLB. Both vehicles bring significant engineering prowess and premium features, but they cater to slightly different markets. In this comparison, we’ll evaluate their technical specifications, innovations, and overall performance to help you choose the best option for your needs.
Starting with dimensions, the Audi Q7 is noticeably larger, measuring 5072 mm in length and 1970 mm in width, making it a spacious vehicle for families and enthusiasts alike. In contrast, the Mercedes GLB is more compact at 4634 mm long and 1834 mm wide. Both SUVs provide a commanding presence on the road but target slightly different demographics; the Q7 is more geared towards families requiring additional space with 7-seater options, while the GLB is perfect for urban dwellers who may prioritize maneuverability.
When it comes to engine offerings, the Audi Q7 has a broader selection. It features a range of powertrains, from a 231 HP diesel MHEV to a powerful 507 HP petrol option. The Q7 emphasizes performance with acceleration times as low as 4.1 seconds for its top-end variant. Fuel consumption varies across models, with some petrol engines featuring a consumption rate as high as 12 L/100km, while diesel options are more efficient, averaging around 7.8 L/100km.
The Mercedes GLB, though presenting fewer options, still offers a potent mix of performance with its petrol MHEV and diesel engines, peaking at 320 HP. Acceleration in the GLB can achieve a time of just 5.5 seconds, which is impressive for its class. However, it distinctly focuses on efficiency with fuel consumption rates from 5.6 to 9 L/100km, catering to drivers who prefer saving on fuel costs.
Both the Audi Q7 and Mercedes GLB are packed with cutting-edge technology. The Q7 boasts the renowned Audi Virtual Cockpit, providing a customizable digital dashboard that integrates navigation, infotainment, and performance metrics seamlessly. Its MMI infotainment system is user-friendly and includes features like smartphone integration and app connectivity.
On the other hand, the GLB shines with Mercedes-Benz’s MBUX (Mercedes-Benz User Experience), featuring a voice-activated assistant and a high-resolution touchscreen display that offers impressive usability. The GLB also provides various driver assistance systems, enhancing safety and convenience.
When it comes to comfort, the Audi Q7 continues to lead with its optional third-row seating, allowing up to seven passengers. The interior is luxuriously appointed with high-quality materials and ample cargo space, ranging from 563 L to 887 L with the seats configured appropriately.
The GLB, while a 5-seater, offers flexibility with rear-seat configurations and a trunk capacity of 570 L, making it versatile for everyday use. The cabin is also crafted with sophistication, equipped with quality materials and a modern ergonomic layout.
The choice between the Audi Q7 and Mercedes GLB ultimately depends on your personal needs and preferences. If you require a larger family SUV with powerful engine options, the Audi Q7 is certainly a strong contender. However, if you prioritize compact design with modern tech and impressive fuel efficiency, the Mercedes GLB effectively fulfills those requirements.
Both vehicles stand out in their respective classes, offering innovation, performance, and luxury at its finest. Whether you're cruising through city streets or embarking on family adventures, each model has something unique to offer.
When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.
Mercedes GLB is substantially cheaper – starting at 43,200 £ , while the Audi Q7 costs 70,600 £ . That’s a price difference of around 27,431 £.
Fuel consumption also shows a difference: the Audi Q7 uses 3.8 L/100km and is substantially more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 1.9 L/100km.
As for electric range, the Mercedes GLB offers considerably more range – reaching up to 631 km, about 549 km more than the Audi Q7.
Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.
When it comes to engine power, the Audi Q7 offers visibly more power – delivering 507 HP compared to 354 HP. That’s roughly 153 HP more horsepower.
When accelerating from 0 to 100 km/h, the Audi Q7 is markedly quicker – completing the sprint in 4.1 s, while the Mercedes GLB takes 5.5 s. That’s about 1.4 s quicker.
There’s also a difference in torque: the Audi Q7 delivers visibly more torque with 770 Nm compared to 515 Nm. That’s about 255 Nm more.
Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.
Seats: Audi Q7 offers more seats – 7 vs 5.
In terms of curb weight, Mercedes GLB is a bit lighter – 1,840 kg compared to 2,055 kg. The difference is around 215 kg.
Looking at boot space, the Audi Q7 offers clearly more boot space – 887 L compared to 540 L. That’s a difference of about 347 L.
When it comes to payload, the Audi Q7 carries substantially more – 885 kg compared to 505 kg. That’s a difference of about 380 kg.
The Audi Q7 holds a decisive overall lead in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.
The Audi Q7 cuts an imposing figure on the road, balancing restrained luxury with a spacious, tech-rich cabin that makes long journeys feel effortless. It rides with confident composure and polished manners, so if you want a premium family SUV that feels grown-up and worth the badge, the Q7 is a persuasive choice — even the in-laws will be impressed.
details
The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.
details
Costs and Consumption |
|
|---|---|
|
Price
70,600 - 100,600 £
|
Price
43,200 - 62,400 £
|
|
Consumption L/100km
3.8 - 11.9 L/100km
|
Consumption L/100km
5.7 - 6.1 L/100km
|
|
Consumption kWh/100km
-
|
Consumption kWh/100km
15.4 - 15.9 kWh/100km
|
|
Electric Range
81 - 82 km
|
Electric Range
431 - 631 km
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
86 - 271 g/km
|
co2
0 - 138 g/km
|
|
Fuel tank capacity
-
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
SUV
|
Body Type
SUV
|
|
Seats
5 - 7
|
Seats
5
|
|
Doors
-
|
Doors
-
|
|
Curb weight
2,055 - 2,460 kg
|
Curb weight
1,840 - 2,280 kg
|
|
Trunk capacity
563 - 887 L
|
Trunk capacity
540 L
|
|
Length
-
|
Length
-
|
|
Width
1,970 mm
|
Width
1,861 mm
|
|
Height
-
|
Height
-
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
640 - 885 kg
|
Payload
485 - 505 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Petrol MHEV, Diesel MHEV, Petrol, Plugin Hybrid
|
Engine Type
Electric, Full Hybrid
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Automatic Gearbox
|
Transmission Detail
Reduction Gearbox
|
|
Drive Type
All-Wheel Drive
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
231 - 507 HP
|
Power HP
156 - 354 HP
|
|
Acceleration 0-100km/h
4.1 - 7.1 s
|
Acceleration 0-100km/h
5.5 - 9.7 s
|
|
Max Speed
-
|
Max Speed
-
|
|
Torque
500 - 770 Nm
|
Torque
280 - 515 Nm
|
|
Number of Cylinders
6 - 8
|
Number of Cylinders
4
|
|
Power kW
170 - 373 kW
|
Power kW
115 - 260 kW
|
|
Engine capacity
2,967 - 3,996 cm3
|
Engine capacity
1,499 cm3
|
General |
|
|---|---|
|
Model Year
2025
|
Model Year
2026
|
|
CO2 Efficiency Class
G, B
|
CO2 Efficiency Class
A, D, E
|
|
Brand
Audi
|
Brand
Mercedes-Benz
|
Deutschland
France
Nederland
Great Britain
Sverige
Danmark
Suomi
Italia
Polska
Česko
España