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Mercedes GLS vs BMW X7 comparison

Compare performance (634 HP vs 530 HP), boot space and price (96,100 £ vs 90,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLS or BMW X7?

Mercedes GLS vs BMW X7: Key differences

Mercedes GLS

  • somewhat more power
  • marginally more efficient
  • a bit quicker 0–100 km/h

BMW X7

5 (1 Reviews)
rate
  • very slightly cheaper
  • marginally lighter
  • considerably more trunk space
GLS

When it comes to luxury SUVs, two of the most prominent players in the market are the BMW X7 and the Mercedes GLS. Both vehicles embody premium craftsmanship, advanced technology, and impressive performance, yet they cater to slightly different tastes and preferences. In this automotive showdown, we will compare these two titans, focusing on key technical aspects and innovations that each brand has brought to the table for their 2023 models.

X7

Engine Options and Performance

The BMW X7 offers a variety of engine choices, including a Diesel Mild Hybrid (MHEV) and two Petrol MHEVs, alongside a powerful petrol variant. The power output ranges from 352 HP for the base model to a roaring 530 HP for the top-spec variant. The vehicle boasts a maximum torque of up to 750 Nm, allowing for a thrilling acceleration from 0 to 100 km/h in as little as 4.7 seconds. In terms of fuel consumption, the X7 performs admirably with figures between 7.9 L/100 km to 12.1 L/100 km depending on the engine choice.

The Mercedes GLS, on the other hand, is equally formidable with a broader range of choices, including Diesel MHEV and several petrol variants. Its power output starts at 333 HP and scales up to an impressive 634 HP. The torque figures are equally impressive, peaking at 850 Nm, which translates to a swift 0-100 km/h time of just 4.2 seconds for the most powerful model. The GLS's fuel consumption also ranges from 7.9 L/100 km to 13.7 L/100 km, making it a competitive option for buyers seeking efficiency without sacrificing performance.

GLS

Dimensions and Interior Space

The BMW X7 measures 5181 mm in length, 2000 mm in width, and stands 1835 mm high, offering ample cabin space for up to seven passengers. With a generous trunk capacity of 750 liters, it excels in practicality for families and travelers alike.

In comparison, the Mercedes GLS is slightly longer, with variants measuring between 5208 mm and 5233 mm. It has a width of 1956 mm and a height ranging from 1782 mm to 1838 mm. However, the GLS offers a significantly smaller trunk space of only 355 liters, which may be a deciding factor for those who prioritize cargo capacity.

X7

Advanced Technology and Innovations

When it comes to infotainment and connectivity, both cars offer cutting-edge technology. The BMW X7 is equipped with the iDrive system that features a large touchscreen interface, advanced navigation, and voice-control capabilities, ensuring that drivers stay connected with ease. Additionally, the X7 includes driving assistance technologies such as adaptive cruise control, lane-keeping assistance, and a surround-view camera system.

On the flip side, the Mercedes GLS features the MBUX (Mercedes-Benz User Experience) infotainment system, which also features a highly responsive touchscreen and voice activation, making it intuitive for users. The GLS excels in showcasing a premium sound system and a heads-up display, enhancing the driving experience. Furthermore, its advanced driver-assistance features include active brake assist and automatic parking capabilities.

GLS

Conclusion: Which SUV Reigns Supreme?

Both the BMW X7 and Mercedes GLS showcase unparalleled performance, luxury, and innovation. The BMW X7 stands out with its powerful engine options and greater trunk capacity, making it an ideal choice for families looking for space. Meanwhile, the Mercedes GLS offers a slightly more advanced infotainment system and a plush interior feel, catering to those who crave modern technology and precision. Ultimately, the choice between the two may boil down to personal preference and specific needs, but either way, you’ll be entering a world of luxury and performance.

Here’s where it gets real: The technical differences in detail

GLS

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

BMW X7 is very slightly cheaper – starting at 90,800 £ , while the Mercedes GLS costs 96,100 £ . That’s a price difference of around 5,349 £.

Fuel consumption also shows a difference: the Mercedes GLS uses 7.8 L/100km and is marginally more efficient than the BMW X7 with 8 L/100km. The difference is about 0.2 L/100km.

X7

Engine and Performance:

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 Mercedes GLS offers somewhat more power – delivering 634 HP compared to 530 HP. That’s roughly 104 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLS is a bit quicker – completing the sprint in 4.2 s, while the BMW X7 takes 4.7 s. That’s about 0.5 s quicker.

Looking at top speed, the Mercedes GLS is moderately faster – reaching 280 km/h, while the BMW X7 tops out at 250 km/h. The difference is around 30 km/h.

There’s also a difference in torque: the Mercedes GLS delivers moderately more torque with 850 Nm compared to 750 Nm. That’s about 100 Nm more.

GLS

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 7 people.

In terms of curb weight, BMW X7 is marginally lighter – 2,490 kg compared to 2,550 kg. The difference is around 60 kg.

Looking at boot space, the BMW X7 offers considerably more boot space – 750 L compared to 355 L. That’s a difference of about 395 L.

For maximum load capacity, the Mercedes GLS offers somewhat more capacity – up to 2,400 L, about 280 L more than the BMW X7.

When it comes to payload, the BMW X7 carries barely more – 760 kg compared to 695 kg. That’s a difference of about 65 kg.

Who wins the race in the data check?

The Mercedes GLS is narrowly ahead 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.

from £96,100
GLS

Mercedes GLS

  • Engine Type : Petrol MHEV, Diesel MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 333 - 634 HP
  • Consumption L/100km : 7.8 - 13.7 L/100km
Mercedes GLS
BMW X7

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Mercedes GLS

The GLS — usually just called the GLS — is Mercedes' flagship SUV, wrapping limousine-like comfort and commanding road presence into a smart, family-ready package. It pampers occupants with a hushed cabin, premium materials and intuitive tech, while still managing to feel confident and a little indulgent on the daily commute.

details

BMW X7

The BMW X7 sits at the top of BMW’s SUV range, wrapping executive-level luxury and a cavernous cabin in a bold, road-commanding package. It’s ideal for buyers who want first-class comfort and presence on the road — think chauffeur-level refinement without hiring one, though you’ll need a confident approach to parking.

details
Mercedes GLS
BMW X7

Costs and Consumption

Price
96,100 - 208,500 £
Price
90,800 - 117,500 £
Consumption L/100km
7.8 - 13.7 L/100km
Consumption L/100km
8 - 12.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
204 - 310 g/km
co2
210 - 274 g/km
Fuel tank capacity
90 L
Fuel tank capacity
80 - 83 L

Dimensions and Body

Body Type
SUV
Body Type
SUV
Seats
7
Seats
7
Doors
5
Doors
5
Curb weight
2,550 - 2,825 kg
Curb weight
2,490 - 2,675 kg
Trunk capacity
355 L
Trunk capacity
750 L
Length
5,208 - 5,233 mm
Length
5,181 mm
Width
1,956 mm
Width
2,000 mm
Height
1,782 - 1,838 mm
Height
1,835 mm
Max trunk capacity
2,400 L
Max trunk capacity
2,120 L
Payload
445 - 695 kg
Payload
680 - 760 kg

Engine and Performance

Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Petrol MHEV, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
333 - 634 HP
Power HP
352 - 530 HP
Acceleration 0-100km/h
4.2 - 6.7 s
Acceleration 0-100km/h
4.7 - 5.9 s
Max Speed
238 - 280 km/h
Max Speed
245 - 250 km/h
Torque
500 - 850 Nm
Torque
520 - 750 Nm
Number of Cylinders
6 - 8
Number of Cylinders
6 - 8
Power kW
245 - 466 kW
Power kW
259 - 390 kW
Engine capacity
2,989 - 3,982 cm3
Engine capacity
2,993 - 4,395 cm3

General

Model Year
2,024 - 2,025
Model Year
2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
BMW
DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.